Introduction to Psychology
Fields

Practice: where fields are applied

Each context below describes the work done, where it happens and which fields it draws on, then separates what study is described, what titles exist and what permission to practice means in a given place. This guide is an educational resource. It is not professional, clinical or legal advice, and it does not tell anyone what they are allowed to do.

Five things that are not the same

A field or specialty label
An area of inquiry or professional focus. Appearing in this guide does not mean it is regulated.
A degree
An academic award with a particular curriculum. It may be one part of what a regulator asks for; it is not a license.
A protected title
A title whose use the law of one place restricts. Titles differ between jurisdictions, and a generic word such as "psychologist" may not be protected at all.
A license or registration
Permission under one jurisdiction's rules to practice, with conditions. Check the current rules of the regulator.
A specialty certification
A voluntary credential from a professional board. It is not the same as statutory licensure.

Practice across countries

These notes were checked against the sources listed under them on October 21, 2026. They describe what those sources say, no more. Rules change, and individual states, nations and professions add their own.

United States

The Association of State and Provincial Psychology Boards (ASPPB) says each jurisdiction in the U.S. and Canada enacts its own psychology licensing legislation, and that most jurisdictions require a doctoral degree in psychology to apply for licensure for independent psychology practice. ASPPB reports that approximately half of the jurisdictions allow people with a master's degree in psychology to practice under the supervision of a doctoral-level licensed psychologist, that all 66 of its member jurisdictions require the Examination for Professional Practice in Psychology (EPPP), and that a majority require two years of supervised experience. The National Association of School Psychologists (NASP) says school psychologists must be state certified or licensed to practice in the United States, and that many also earn NASP's Nationally Certified School Psychologist (NCSP) credential, which it describes as recognizing advanced professional preparation and competence. [1] [2]

Not established here: No state statute, board rule or PSY|Book entry was opened, so no requirement for any individual state is established. ASPPB's figures cover U.S. and Canadian member jurisdictions together and are not broken out by country. NASP does not name which state agency issues school psychology credentials, and its page does not state the legal status of the NCSP; that the NCSP is not a state license is an inference from NASP being an association and from its 'many also earn' wording, not a statement on the page. Board certification (ABPP) is not covered by these sources. Readers must check the current licensing board.

Canada

The Canadian Psychological Association describes psychology regulation as provincial or territorial: educational requirements differ, and applicants should check the regulator where they intend to practice. Ontario provides one example. The College of Psychologists and Behaviour Analysts of Ontario identifies itself as the regulator of psychology and applied behavior analysis in that province. Its current FAQ also describes a conditional As of Right route, lasting up to six months while registration is completed, for psychologists and psychological associates already fully registered elsewhere in Canada. That route has application, insurance and other conditions; it is not an automatic right for every graduate or overseas applicant. [5] [6] [7]

Not established here: This is a national orientation with Ontario as one example, not a complete provincial comparison. Consolidated legislation, all registration routes, degree equivalence, interprovincial eligibility and individual circumstances were not assessed. CPA is a professional association, not the licensing authority; consult the current provincial or territorial regulator.

United Kingdom

The Health and Care Professions Council (HCPC) says there are nine protected titles for psychologists: Practitioner psychologist, Registered psychologist, Clinical psychologist, Forensic psychologist, Counselling psychologist, Health psychologist, Educational psychologist, Occupational psychologist, and Sport and exercise psychologist, and that anyone who uses one of these titles must be on its Register. The HCPC states that the job title 'psychologist' is not, by itself, protected by law. Its standards of proficiency for practitioner psychologists, effective from September 1, 2023, require registrants to practice safely and effectively within their scope of practice, with additional standards for named domains such as clinical, counselling, educational, forensic, health, occupational, and sport and exercise psychologists. [3] [4]

Not established here: The statutory instrument that protects the titles was not opened. Education and training routes (BPS accreditation, HCPC-approved programs, BPS chartership) were not verified from these two pages. That the generic word is unprotected does not establish that its use is exempt from other law (for example consumer or advertising rules), which was not checked. The later domain sections of the standards page were seen only as headings. Readers must check the current HCPC Register and guidance.

Australia

The Psychology Board of Australia says general registration permits use of the psychologist title and work within the practitioner's scope of practice. Its general-registration page describes a six-year education and training sequence, with a higher-degree pathway or a 5+1 internship pathway after the initial four-year sequence. The Board distinguishes general registration from an area of practice endorsement: an endorsement is recorded on general registration and requires additional approved training and supervised practice. Its FAQ distinguishes this arrangement from specialist registration. A university qualification, general registration and an endorsement therefore describe different stages, not interchangeable credentials. [8] [9]

Not established here: The linked registration standards, National Law, overseas-qualification assessment and individual eligibility were not assessed in full. This overview does not promise registration from completing a particular degree. Pathways and transition rules can change; consult the Board and Ahpra for current requirements and the public register.

  1. [1]
    Requirements to PracticeAssociation of State and Provincial Psychology Boards (ASPPB), undated. Professional association.Selected text readRead extracts with exact passages: 'Most jurisdictions require a doctoral degree in psychology' under 'To apply for licensure for independent psychology practice'; master's-level practice 'under the supervision of a doctoral-level licensed psychologist' in approximately half of jurisdictions; 'All of our 66 member jurisdictions require the ... EPPP' under 'Examination Requirements'; 'A majority of jurisdictions require two years of supervised experience'; 'Each jurisdiction has the right to protect its citizens by enacting legislation related to psychology licensing'. No page date shown. ASPPB is an association of licensing boards, not itself a regulator.
  2. [2]
    What Is a School Psychologist?National Association of School Psychologists (NASP), undated. Professional association.Selected text readRead extracts with exact passages: 'To practice in the United States, school psychologists must be state certified or licensed'; 'Most school psychologists hold at least a specialist-level degree, which typically requires 3 years of full-time graduate study'; 'Many also earn NASP's Nationally Certified School Psychologist (NCSP) credential, which recognizes advanced professional preparation and competence'; workplace list. Only a footer copyright (2024) is shown, which is not a publication year.
  3. [3]
    Understanding the regulation of psychologistsHealth and Care Professions Council (HCPC), 2023. Regulator.Selected text readCounted nine protected titles in the list, matching the page's 'there are 9 different protected titles'; read 'The job title psychologist, is not, by itself, protected by law' and 'anyone who uses one of these protected titles must be on our Register'. The page date line shows 16 January 2023. No author shown. The statutory instrument was not opened.
  4. [4]
    Standards of proficiency: Practitioner psychologistsHealth and Care Professions Council (HCPC), 2023. Regulator.Selected text readRead extracts: 'These standards are effective from 1 September 2023'; standard 1 'practise safely and effectively within their scope of practice'; definition of scope of practice; domain headings for clinical and counselling, educational, forensic, health, occupational, and sports and exercise psychologists. 'Published: 01/09/2023'. The page says nothing about protected titles; the body of the domain sections was not read in full.
  5. [5]
    Licensure (Regulation) of the Practice of PsychologyCanadian Psychological Association, undated. Professional association.Selected text readRead the License to Practice in Canada, Requirements for Licensure and foreign-training guidance body sections. No publication or revision date was displayed. Provincial statutes and linked requirement tables were not opened.
  6. [6]
    Who we areCollege of Psychologists and Behaviour Analysts of Ontario, undated. Regulator.Selected text readRead the opening mandate, registration responsibilities and regulated-professional sections. The earlier about-cpo URL redirects to this current page; no publication date was shown.
  7. [7]
    FAQsCollege of Psychologists and Behaviour Analysts of Ontario, undated. Regulator.Selected text readRead the As of Right Legislation - Psychology section, including January 1, 2026 applicability, exclusions, the listed conditions and application-before-services requirement. No page-wide publication or revision date was identified. Other FAQ sections were not reviewed in full.
  8. [8]
    General registrationPsychology Board of Australia, undated. Regulator.Selected text readRead the general-registration definition, education and training pathways, and endorsement section from actual HTML retrieved with curl (HTTP 200); web-tool retrieval returned 403. Page reviewed July 13, 2026. Linked standards, pathway diagrams and application forms were not opened.
  9. [9]
    Endorsement FAQPsychology Board of Australia, undated. Regulator.Selected text readRead actual HTML sections on endorsement qualifications, endorsement versus specialist registration, and title/scope protection, retrieved with curl (HTTP 200); web-tool retrieval returned 403. Linked standards and National Law were not opened. Page reviewed April 17, 2024; original publication date was not identified.

Independent source review: Claude Code original US/UK reviewers; Codex independent Canada/Australia reviewer, 2026-10-21.

16 professional contexts

Clinical neuropsychology practice

Clinical neuropsychologists assess how brain disorders and injuries affect thinking and behavior and write clinical reports. Specialty board certification in the United States is separate from licensure.

What people do

O*NET describes clinical neuropsychologists assessing and diagnosing neurobehavioral problems caused by nervous system disorders such as traumatic brain injury, seizure disorders and neurodegenerative disorders. Tasks include interviewing patients for medical histories, conducting evaluations of cognitive function, writing clinical reports from test results and observation, and giving feedback to patients and families. The Bureau of Labor Statistics describes neuropsychologists as studying how dysfunction or damage to the brain, spine or nerves affects behavior and cognition.

Where it happens

  • Health care and social assistance; government (O*NET industry categories, United States) [2]

Connected fields

Study and training described

In the United States, ABCN, a specialty board within ABPP, expects documented coursework in eight core areas, including functional neuroanatomy, clinical neurology and psychological assessment, and a postdoctoral residency in which at least half of the training is clinical neuropsychological services. For training completed on or after January 1, 2005, ABCN requires a residency equivalent to two full years. These are United States board-certification requirements, not licensing requirements. Separately, ASPPB says psychology licensure in the United States is set by each jurisdiction.

Titles and licensing, by jurisdiction

United States
Licensure is set by each jurisdiction's law and board; ASPPB, an association of boards, says most jurisdictions require a doctorate in psychology. ABCN board certification, granted after generic ABPP review, is a voluntary specialty credential and not a license. No neuropsychology-specific license was found in the sources opened. [4]
United Kingdom
The HCPC's list of nine protected titles does not include a neuropsychologist title. The sources opened do not describe a United Kingdom route for neuropsychology. [6]

What this does not show

The ABCN requirements describe specific coursework and a supervised residency; a general degree title does not by itself show that they were met. These sources do not describe employers, a United States license specific to neuropsychology, or other national routes. In the United Kingdom, none of the nine HCPC protected titles is a neuropsychologist title. Overlap with clinical practice and rehabilitation is large. This guide is an educational resource, not professional, clinical or legal advice; check the current regulator.

Sources

  1. [1]
    Clinical Neuropsychology: Specialty Specific RequirementsAmerican Board of Professional Psychology / American Board of Clinical Neuropsychology, undated. Professional association.Selected text readRead an extract on didactics, postdoctoral residency, post-2005 eligibility and exceptions; it describes board-certification eligibility, not licensure.
  2. [2]
    Clinical Neuropsychologists (19-3039.03)O*NET OnLine, sponsored by the U.S. Department of Labor, undated. Reference work.Selected text readRead an extract of the occupation description and a selection of the 19 listed tasks; it names no employers, only the industry categories Government and Health Care and Social Assistance. Survey education percentages were not used.
  3. [3]
    PsychologistsU.S. Bureau of Labor Statistics, Occupational Outlook Handbook, undated. Reference work.Selected text readRead an extract; only the neuropsychologist description was used.
  4. [4]
    Requirements to PracticeAssociation of State and Provincial Psychology Boards (ASPPB), undated. Professional association.Selected text readRead an extract on doctorate, examination, supervised experience and jurisdiction variation.
  5. [5]
    Our HistoryAmerican Board of Professional Psychology (ABPP), undated. Professional association.Selected text readRead an extract on what ABPP is and how it describes board certification relative to licensure; the page presents licensure as the legal requirement for independent general practice but does not say outright that board certification is not a license. Percentage figures on the page were not used.
  6. [6]
    Understanding the regulation of psychologistsHealth and Care Professions Council (HCPC), 2023. Regulator.Selected text readRead an extract with the list of nine protected titles; the page is dated 16 January 2023.

Independent source review: Claude Code reviewer agent, separate from the writer, 2026-10-21.

Clinical practice

Clinical practice covers assessment, diagnosis and treatment of mental, emotional and behavioral difficulties in health, community and private settings. Titles, licensing and training differ by country.

What people do

In the United States, the Bureau of Labor Statistics says clinical and counseling psychologists assess, diagnose and treat mental, emotional and behavioral disorders, and lists interviewing clients, giving diagnostic tests, providing psychotherapy and designing behavior modification plans that clients help implement. In the United Kingdom, Prospects describes clinical psychologists assessing needs, abilities and behavior with psychometric tests, structured interviews and observation, delivering evidence-based therapy such as cognitive behavioral therapy, advising colleagues in multidisciplinary teams, and supporting carers and families.

Where it happens

  • Hospitals (United States, psychologists generally) [1]
  • Private practice (United States, psychologists generally) [1]
  • National Health Service mental health services (United Kingdom) [4]
  • Prisons and secure units (United Kingdom) [4]
  • Charities and research institutions (United Kingdom) [4]

Connected fields

Study and training described

ASPPB, an association of state and provincial psychology boards, reports that most of its member jurisdictions require a doctoral degree in psychology for licensure, that a majority require two years of supervised experience, and that all 66 member jurisdictions require the EPPP examination. In the United Kingdom, Prospects describes a route through a BPS-accredited psychology degree or conversion course, then a Doctorate in Clinical Psychology approved by the HCPC, usually three years full time. This context summarizes United States and United Kingdom sources; other countries' training routes are not established here.

Titles and licensing, by jurisdiction

United States
Licensure is set by each jurisdiction's law and board. ASPPB's cross-jurisdiction summary says most jurisdictions require a doctoral degree in psychology for licensure, with variation. ASPPB is an association of licensing boards; its summary is not any one state's law. [2]
United Kingdom
The HCPC lists Clinical psychologist as one of nine protected titles. The HCPC also says the job title psychologist is not, by itself, protected by law. Prospects says practice as a clinical psychologist requires HCPC registration. [3]

What this does not show

This context describes tasks and settings, not a job promise. A degree, a specialty label, a protected title and a license are four separate things, and none follows automatically from another. Counseling, health and neuropsychology contexts overlap with this one. This guide is an educational resource, not professional, clinical or legal advice; check the current regulator before relying on any of it.

Sources

  1. [1]
    PsychologistsU.S. Bureau of Labor Statistics, Occupational Outlook Handbook, undated. Reference work.Selected text readRead an extract of the What Psychologists Do and Work Environment sections through a fetch tool; pay and employment figures were not used. The settings sentence concerns psychologists in general, not clinical psychologists specifically.
  2. [2]
    Requirements to PracticeAssociation of State and Provincial Psychology Boards (ASPPB), undated. Professional association.Selected text readRead an extract covering doctorate, examination, supervised experience and jurisdiction variation; it does not list any one jurisdiction's law, and its 66 member jurisdictions are ASPPB members (states and provinces), not a United States count.
  3. [3]
    Understanding the regulation of psychologistsHealth and Care Professions Council (HCPC), 2023. Regulator.Selected text readRead an extract with the nine protected titles and the statement on the word psychologist; the page is dated 16 January 2023, and the statutory instrument itself was not opened.
  4. [4]
    Clinical psychologistProspects (Jisc), undated. Reference work.Selected text readRead an extract on responsibilities, employers, qualification route and HCPC registration; salary information was not used.

Independent source review: Claude Code reviewer agent, separate from the writer, 2026-10-21.

Community research and policy

Community psychology looks at how social, cultural and economic forces shape well-being, through research and action in communities, with an interest in prevention and policy.

What people do

SCRA describes community psychology as going beyond an individual focus and integrating social, cultural, economic, political, environmental and international influences to promote positive change, health and empowerment at individual and systemic levels. Its members work to promote health and empowerment and to prevent problems affecting communities, groups and individuals. Its stated goals include research on human behavior in context, action for the equitable distribution of resources and influence on economic and social policy.

Where it happens

  • Academic settings [2]
  • Applied settings [2]

Connected fields

Study and training described

The sources opened for this context do not state a degree, license or certification route for community research or policy work. SCRA's goals page mentions promoting careers in community research and action in both academic and applied settings, but states no entry requirements. Credentials for individual treatment are described in the clinical and counseling contexts. No jurisdiction-specific title rule is stated here.

Titles and licensing, by jurisdiction

What this does not show

SCRA is a division of one American organization, so its pages describe that society's aims, not a distinct regulated profession. Community work crosses professions, and these sources do not define who may do what in any country. The sources do not list employers, job titles or workplaces beyond academic and applied settings. Overlap with public policy, environment, school and health contexts is large. This guide is an educational resource, not professional, clinical or legal advice; check the current regulator for any practice credential.

Sources

  1. [1]
    Society for Community Research and ActionSociety for Community Research and Action (APA Division 27), undated. Professional association.Selected text readRead an extract of the home page with the definition and mission; the linked mission page was not read.
  2. [2]
    GoalsSociety for Community Research and Action, undated. Professional association.Selected text readRead the seven bulleted goals in full; they support aims for research, action and policy, not licensing or particular jobs.

Independent source review: Claude Code reviewer agent, separate from the writer, 2026-10-21.

Counseling practice

Counseling psychology practice supports personal and interpersonal functioning across the life span, using assessment, counseling and psychological therapies. The United States and United Kingdom set titles and training differently.

What people do

The Society of Counseling Psychology describes counseling psychology as a professional psychology specialty focused on helping people function well personally and in relationships across the life span, using culturally sensitive practices to improve well-being and reduce distress. O*NET lists individual or group counseling for personal, social, educational and vocational adjustment among tasks of clinical and counseling psychologists, along with assessment and treatment planning. In the United Kingdom, Prospects describes counselling psychologists assessing needs, formulating difficulties and delivering evidence-based psychological therapies.

Where it happens

  • Private practice (United States) [2]
  • NHS hospitals and psychological therapy services (United Kingdom) [5]
  • Community mental health teams (United Kingdom) [5]
  • Schools, colleges and universities (United Kingdom) [5]
  • Independent practice (United Kingdom) [5]

Connected fields

Study and training described

In the United States, the Bureau of Labor Statistics says clinical and counseling psychologists typically need a Ph.D. or Psy.D., and ASPPB reports that most jurisdictions require a doctoral degree in psychology for licensure. In the United Kingdom, Prospects describes a Doctorate in Counselling Psychology approved by the HCPC and accredited by the BPS, usually three years full time, after a BPS-accredited psychology degree or conversion course. These sources do not describe master's-level counselor licensure in any country.

Titles and licensing, by jurisdiction

United States
The Bureau of Labor Statistics says clinical and counseling psychologists are licensed in every state, and ASPPB says each jurisdiction sets its own rules. ASPPB is an association of licensing boards, and its summary is not a state law. Neither source gives any one state's law. [2] [6]
United Kingdom
The HCPC lists Counselling psychologist as a protected title. The same HCPC page says counsellor, psychotherapist and therapist are not protected titles. [4]

What this does not show

Counseling psychologist and counselor are not interchangeable labels, and the sources opened here do not describe counselor licensure. In the United Kingdom, HCPC says counsellor, psychotherapist and therapist are not protected titles, whereas Counselling psychologist is. Overlap with clinical practice is large, and the sources do not draw a sharp line by severity of difficulty. This guide is an educational resource, not professional, clinical or legal advice; check the current regulator.

Sources

  1. [1]
    What is Counseling Psychology?Society of Counseling Psychology (APA Division 17), undated. Professional association.Selected text readRead an extract of the society's home page with its definition of counseling psychology; the separate about pages returned 404 and were not read.
  2. [2]
    PsychologistsU.S. Bureau of Labor Statistics, Occupational Outlook Handbook, undated. Reference work.Selected text readRead an extract of the duties, work environment and how-to-become sections; pay and employment figures were not used. The line about counseling psychologists having their own practices is a photo caption.
  3. [3]
    Clinical and Counseling Psychologists (19-3033.00)O*NET OnLine, sponsored by the U.S. Department of Labor, undated. Reference work.Selected text readRead an extract of the occupation description and task list; survey education percentages were not used.
  4. [4]
    Understanding the regulation of psychologistsHealth and Care Professions Council (HCPC), 2023. Regulator.Selected text readRead an extract with the nine protected titles and the passage on unprotected titles; the page is dated 16 January 2023 and the statutory instrument was not opened.
  5. [5]
    Counselling psychologistProspects (Jisc), undated. Reference work.Selected text readRead an extract on responsibilities, employers, qualification route and HCPC statements; salary was not used.
  6. [6]
    Requirements to PracticeAssociation of State and Provincial Psychology Boards (ASPPB), undated. Professional association.Selected text readRead an extract on doctorate, examination, supervised experience and jurisdiction variation.

Independent source review: Claude Code reviewer agent, separate from the writer, 2026-10-21.

Environment, conservation and place

Environmental and conservation psychology study relations between people and natural and built environments. EDRA was founded by design professionals, social scientists, students, educators and facility managers.

What people do

SEPCP, APA Division 34, describes its members as applying psychological knowledge and practice to improve interactions between humans and natural and built environments, and says it organizes programs at the APA convention and promotes diverse approaches to the study of environmental psychology. EDRA describes its purpose as advancing research, teaching and practice on how people, built environments and natural ecosystems relate, within a multidisciplinary community that connects theory, research, teaching and practice. The pages opened do not list specific job tasks beyond these aims.

Where it happens

    Connected fields

    Study and training described

    The sources opened for this context do not state a degree, license or certification route for environmental or conservation psychology. EDRA says it was founded in 1968 by design professionals, social scientists, students, educators and facility managers, and describes a multidisciplinary community connecting theory, research, teaching and practice. SEPCP's home page describes a website, listserv, newsletters and APA convention programs rather than training pathways. No jurisdiction-specific title rule is stated here.

    Titles and licensing, by jurisdiction

    What this does not show

    Environmental psychology draws on design and social science disciplines, according to EDRA, and these two organizational pages do not describe employers, conservation settings or planning authority. The sources state no clinical authority or planning approval power for environmental expertise. SEPCP is a division of one American organization, not a separate profession. Only two sources were opened, and a journal scope page was not accessible. This guide is an educational resource, not professional, clinical or legal advice; check the current regulator for any practice credential.

    Sources

    1. [1]
      Society for Environmental, Population and Conservation Psychology (home page)Society for Environmental, Population and Conservation Psychology (APA Division 34), undated. Professional association.Selected text readRead an extract of the home page; it has no formal mission statement or visible membership options, and the page title is descriptive.
    2. [2]
      Environmental Design Research Association (home page)Environmental Design Research Association (EDRA), undated. Professional association.Selected text readRead an extract of the mission, founding statement and the list of Knowledge Networks; the page title is descriptive and network topics were not read.

    Independent source review: Claude Code reviewer agent, separate from the writer, 2026-10-21.

    Forensic psychology applies psychological science and practice to questions in law and the legal system, including assessments, interventions and reports. Specialist credentials and protected titles differ by country.

    What people do

    AP-LS states its mission as enhancing well-being, justice and human rights through the science and practice of psychology in legal contexts. ABPP defines forensic psychology as applying the science and profession of psychology to questions and issues relating to law and the legal system. In the United Kingdom, Prospects describes forensic psychologists carrying out psychological and risk assessments, delivering interventions to reduce harmful behavior, and advising or providing evidence to courts, parole boards and mental health tribunals.

    Where it happens

    • HM Prison and Probation Service (England and Wales) [3]
    • NHS secure mental health and forensic services (United Kingdom) [3]
    • Independent secure hospitals (United Kingdom) [3]
    • Youth custody and youth justice services (United Kingdom) [3]
    • Police forces and other criminal justice organizations (United Kingdom) [3]

    Connected fields

    Study and training described

    In the United States, ASPPB reports that most jurisdictions require a doctoral degree in psychology for licensure for independent practice, and requirements vary by jurisdiction. In the United States, ABPP describes board certification in forensic psychology as a specialty credential review with a written examination, a practice sample review and a three-hour oral examination, with no exemptions; it is not a license. In the United Kingdom, Prospects describes a BPS-accredited forensic psychology master's degree followed by HCPC-approved supervised professional training, after which a person can apply for HCPC registration.

    Titles and licensing, by jurisdiction

    United States and Canada
    ASPPB says each jurisdiction in the U.S. and Canada enacts its own licensing legislation, and most require a doctoral degree in psychology to apply for licensure for independent practice. The sources opened do not describe a forensic-specific license. ABPP describes forensic psychology certification as credential review, a written examination, practice sample review and an oral examination; it is a specialty credential, not a license. [5]
    United Kingdom
    The HCPC lists Forensic psychologist as a protected title. Prospects says using the title requires completing postgraduate professional training and applying for HCPC registration. [4] [3]

    What this does not show

    Legal questions differ by court and jurisdiction, and these sources do not describe admissibility rules or who may testify as an expert in any country. The sources opened here make no claim that psychologists can reliably detect truthfulness or predict dangerousness, and none should be read into this entry. Board certification is not a license. Overlap with police, public safety and clinical contexts is large. This guide is an educational resource, not professional, clinical or legal advice; check the current regulator.

    Sources

    Independent source review: Claude Code reviewer agent, separate from the writer, 2026-10-21.

    Health and medical settings

    Health psychology applies knowledge about behavior, emotion and biology to promoting health, preventing and treating illness, and improving health care. United States board certification and United Kingdom registration are separate routes.

    What people do

    ABPP describes clinical health psychologists as applying knowledge of how behavioral, emotional, cognitive, social and biological components interact to promote and maintain health, prevent, treat and rehabilitate illness and disability, and improve the health care system. In the United Kingdom, Prospects describes health psychologists identifying behaviors that may damage patients' health, developing interventions that address patients' health beliefs, conducting psychological assessments, evaluating the effectiveness of psychological interventions and services, and advising health professionals.

    Where it happens

    • National Health Service and Health and Social Care in Northern Ireland (United Kingdom) [3]
    • Hospitals and community health services such as general practice (United Kingdom) [3]
    • Public health teams within local authorities (United Kingdom) [3]
    • Rehabilitation services and research units (United Kingdom) [3]
    • Universities and charities (United Kingdom) [3]

    Connected fields

    Study and training described

    In the United States, ASPPB reports that most jurisdictions require a doctoral degree in psychology for licensure, and ABPP describes specialty certification in clinical health psychology as verifying education, training and experience and requiring an examination. In the United Kingdom, Prospects describes a BPS-accredited health psychology master's degree followed by Stage 2 training, either an HCPC-approved doctorate or the BPS Qualification in Health Psychology Stage 2, each involving about two years of supervised practice.

    Titles and licensing, by jurisdiction

    United States
    Licensure is set by each jurisdiction's law and board; ASPPB, an association of boards, says most require a doctorate in psychology. ABPP describes Clinical Health Psychology certification by the American Board of Clinical Health Psychology as a specialty credential that verifies education, training and experience; it is voluntary and not a license. No health-psychology-specific license was found in the sources opened. [5]
    United Kingdom
    The HCPC lists Health psychologist as a protected title. Prospects says Stage 2 completion leads to entry to the HCPC register as a health psychologist. [4] [3]

    What this does not show

    Health-behavior research and clinical treatment carry different responsibilities, and the sources opened here do not describe United States employers or licensing rules for other jurisdictions. The 1984 American Board of Health Psychology is a United States organizational record, not the start of the field. Overlap with clinical, rehabilitation and counseling contexts is large. This guide is an educational resource, not professional, clinical or legal advice; check the current regulator.

    Sources

    1. [1]
      Our HistorySociety for Health Psychology (APA Division 38), undated. Society history.Selected text readRead an extract of the history timeline (the 1984 entry on the American Board of Health Psychology, with no year given for its later ABPP affiliation); the home-page description of health psychology was not on this page and was not read.
    2. [2]
      Clinical Health PsychologyAmerican Board of Professional Psychology (ABPP), undated. Professional association.Selected text readRead an extract of the specialty definition and certification description; detailed eligibility rules were not read.
    3. [3]
      Health psychologistProspects (Jisc), undated. Reference work.Selected text readRead an extract on responsibilities, employers, qualification stages and HCPC statements; salary was not used.
    4. [4]
      Understanding the regulation of psychologistsHealth and Care Professions Council (HCPC), 2023. Regulator.Selected text readRead an extract with the list of nine protected titles; the page is dated 16 January 2023.
    5. [5]
      Requirements to PracticeAssociation of State and Provincial Psychology Boards (ASPPB), undated. Professional association.Selected text readRead an extract on doctorate, examination, supervised experience and jurisdiction variation.

    Independent source review: Claude Code reviewer agent, separate from the writer, 2026-10-21.

    Human factors and user research

    Human factors and ergonomics study how people interact with products, equipment, jobs and systems, and apply that knowledge to design, usability and safety.

    What people do

    HFES adopts the International Ergonomics Association definition of ergonomics (or human factors) as a scientific discipline concerned with understanding interactions, and as a profession that applies theory, principles, data and methods to design in order to optimize human well-being and system performance. The definition says ergonomists contribute to the design and evaluation of tasks, jobs, products, environments and systems, and a reproduced FDA statement says human factors work helps reduce the risks of medical use error. In the United States, O*NET lists designing or evaluating work systems, assessing usability, conducting user research and recommending safety-focused workplace changes.

    Where it happens

    • Educational institutions [2]
    • Industry [2]
    • Government and military research centers [2]
    • Independent consultancies [2]

    Connected fields

    Study and training described

    The sources opened for this context do not state a required degree, license or certification for human factors or user research. In the United States, O*NET reports that survey respondents most often said a master's degree is required for new hires in the occupation Human Factors Engineers and Ergonomists, followed by a bachelor's degree. HFES describes members from educational institutions, industry, government and military research centers and independent consultancies. No jurisdiction-specific title rule is stated.

    Titles and licensing, by jurisdiction

    What this does not show

    A user experience job title is not by itself evidence of psychological or other qualification, and the sources opened here do not define user experience roles. The O*NET title names engineers as well as ergonomists, so overlap with engineering and design is large. The sources state no clinical, medical-device or engineering authority for usability work. Overlap with work, military and health contexts is also large. This guide is an educational resource, not professional, clinical or legal advice; check the current regulator.

    Sources

    1. [1]
      Other Definitions of HF/EHuman Factors and Ergonomics Society (HFES), undated. Professional association.Selected text readRead an extract of the IEA definition adopted by HFES and of definitions from government agencies; the page has no application-areas list.
    2. [2]
      About HFESHuman Factors and Ergonomics Society (HFES), undated. Professional association.Selected text readRead an extract of the self-description and members' work domains; the page does not give a full definition.
    3. [3]
      Human Factors Engineers and Ergonomists (17-2112.01)O*NET OnLine, sponsored by the U.S. Department of Labor, undated. Reference work.Selected text readRead an extract of the description, listed tasks and education survey results; the extract shows no survey year.

    Independent source review: Claude Code reviewer agent, separate from the writer, 2026-10-21.

    Measurement, testing and evaluation

    Measurement work develops and evaluates tests and assessments and the guidance for using them, in universities, testing programs, government agencies and evaluation teams.

    What people do

    NCME describes a community of measurement scientists and practitioners who advance theory and applications of educational measurement. The Standards for Educational and Psychological Testing, published collaboratively by AERA, APA and NCME since 1966, are guidance on testing. O*NET lists developing interview techniques, rating scales and psychological tests for selection, and analyzing data with statistical methods to evaluate programs, among industrial-organizational psychologist tasks. In the United Kingdom, Prospects describes occupational psychologists designing, administering and interpreting psychometric and psychological assessments.

    Where it happens

    • Universities (faculty) [1]
    • Test development [1]
    • State and federal testing and research offices (United States) [1]
    • Program evaluation [1]
    • Licensure, certification and credentialing bodies [1]

    Connected fields

    Study and training described

    The sources opened for this context do not state a degree, license or certification route for measurement work. NCME lists graduate students in measurement programs among its members. The Standards describe themselves as guidance on testing in the United States and many other parts of the world; they are not a license. In the United Kingdom, Prospects says working as an occupational psychologist, whose listed tasks include psychometric assessment, requires HCPC registration; the sources do not say that all test development requires registration.

    Titles and licensing, by jurisdiction

    United Kingdom
    Prospects says working as an occupational psychologist in the United Kingdom requires registration with the HCPC, and lists designing, administering and interpreting psychometric assessments among the work. The sources do not say who else may develop or use tests. [4]

    What this does not show

    Designing a test is different from being authorized to administer or interpret one for a particular decision, and these sources do not state who may do which in any country. The Standards are guidance documents, and this entry does not summarize their content; a revision of the Standards was announced in 2024. Measurement overlaps with educational research, work and organizations, and academic research contexts. This guide is an educational resource, not professional, clinical or legal advice; check the current regulator.

    Sources

    1. [1]
      About NCMENational Council on Measurement in Education (NCME), undated. Professional association.Selected text readRead an extract of the mission, members and activities; the page title is descriptive. The list names member roles, not workplaces.
    2. [2]
      Standards for Educational and Psychological TestingAERA, APA and NCME (testingstandards.net), undated. Professional association.Selected text readRead an extract of the home page on sponsorship, the 2014 edition and 2024 announcements of a revision committee; the content of the Standards was not read.
    3. [3]
      Industrial-Organizational Psychologists (19-3032.00)O*NET OnLine, sponsored by the U.S. Department of Labor, undated. Reference work.Selected text readRead the first 100,000 of about 148,000 characters, covering the description and key tasks.
    4. [4]
      Occupational psychologistProspects (Jisc), undated. Reference work.Selected text readRead an extract on responsibilities and HCPC statements; salary was not used.

    Independent source review: Claude Code reviewer agent, separate from the writer, 2026-10-21.

    Military and defense settings

    Military psychology is described by its setting rather than its methods, and spans clinical, human factors, personnel, organizational and measurement work in military and national defense organizations.

    What people do

    The Society for Military Psychology, citing Driskell and Olmstead (1989), describes military psychology as defined by its context of application, the military, rather than by a common set of techniques. Its student page lists assessment, research, clinical practice, educational environments and industrial/organizational psychology, across clinical and health psychology, training and human factors, manpower and personnel, social and organizational systems, and testing and measurement. The society's home page says members serve in research, management, mental health care, teaching, consulting and advising senior commands.

    Where it happens

    • Military medical centers [1]
    • Outpatient clinics [1]
    • Overseas and deployed locations [1]
    • Military policy offices [1]
    • Research facilities [1]

    Connected fields

    Study and training described

    The Society's student page links to training resources, including free courses from the Center for Deployment Psychology on topics such as Cognitive Processing Therapy, Prolonged Exposure, military cultural competence and sleep health, and to a page on how to become a psychologist in the Department of Defense. The sources opened here do not state a degree, license or commissioning requirement, and the linked Department of Defense page was not opened.

    Titles and licensing, by jurisdiction

    What this does not show

    These US-based sources describe military psychology as a context spanning several specialties and do not describe a separate credential for it. Sources on employer requirements, commissioning, security clearance and licensure for military roles were not opened, and none is stated here. The sources state no clinical authority conferred by a military-context course. Overlap with clinical, work, human factors and police contexts is large. This guide is an educational resource, not professional, clinical or legal advice; check the current employer and regulator.

    Sources

    1. [1]
      Student Military PsychologySociety for Military Psychology (APA Division 19), undated. Professional association.Selected text readRead an extract of the description, disciplines, workplaces, tasks and training links; linked courses and Department of Defense career pages were not opened.
    2. [2]
      Society for Military Psychology (home page)Society for Military Psychology (APA Division 19), undated. Professional association.Selected text readRead an extract of the society's self-description and members' functions; the page title is descriptive.

    Independent source review: Claude Code reviewer agent, separate from the writer, 2026-10-21.

    Police and public safety

    Police psychology covers personnel assessment, intervention, consultation and operational support for law enforcement agencies. This entry rests on one professional-association section and does not cover emergency-response psychology generally.

    What people do

    The IACP Police Psychological Services Section says it exists to advance ethical, evidence-based police psychological services and describes its services as personnel assessment, individual and organizational intervention, consultation and operational assistance. Its published guidance addresses pre-employment evaluations, fitness-for-duty evaluations, officer-involved shootings, peer support and wellness visits. The section's history page says law enforcement agencies used psychological services as early as 1917 and that the section was elevated from a committee in 1986.

    Where it happens

    • Police and law enforcement agencies [1]

    Connected fields

    Study and training described

    The sources opened for this context do not state a degree, license or certification route for police or public safety psychology. The IACP section page describes services and guidelines rather than entry requirements, and its history page records organizational events rather than training pathways. Fire service and emergency response psychology were not covered by the pages opened. No jurisdiction-specific title rule is stated here.

    Titles and licensing, by jurisdiction

    What this does not show

    This entry rests on one professional-association section, so it shows how that group describes police psychology, not how every agency or country does. Selection and fitness-for-duty evaluations are sensitive decisions, and the sources opened do not state who may perform them under which law. The 1984 committee and 1986 section are organizational milestones, not the start of the field. Overlap with forensic, military and clinical contexts is large. This guide is an educational resource, not professional, clinical or legal advice; check the current regulator and agency policy.

    Sources

    1. [1]
      Police Psychological Services SectionInternational Association of Chiefs of Police (IACP), undated. Professional association.Selected text readRead an extract of the section's purpose, services and list of guidelines (with their revision years); guideline texts were not opened.
    2. [2]
      Psychological Services Section HistoryInternational Association of Chiefs of Police (IACP), undated. Society history.Selected text readRead an extract of the timeline from 1917 to 1986 and the chairs list; the page says agencies used psychological services as early as 1917, and its events were not checked elsewhere.

    Independent source review: Claude Code reviewer agent, separate from the writer, 2026-10-21.

    Rehabilitation and disability

    Rehabilitation psychology addresses the psychological and social consequences of disability and chronic medical conditions, in hospitals, rehabilitation centers, clinics and community settings.

    What people do

    APA Division 22 describes rehabilitation psychology as concerned with the psychological and social consequences of disability; rehabilitation psychologists work with people with diverse disabilities and chronic medical conditions across the life span. Its members' work includes clinical services, consultation, advocacy, research and education. The Division states a fundamental goal of minimizing barriers to full participation in society by persons with disabilities. The Bureau of Labor Statistics describes helping clients with physical or developmental disabilities from illness or injury become more independent.

    Where it happens

    • Acute hospitals (Division 22 members) [1]
    • Rehabilitation centers (Division 22 members) [1]
    • Clinics (Division 22 members) [1]
    • Academic institutions (Division 22 members) [1]
    • Day treatment programs (Division 22 members) [1]
    • Independent practice (Division 22 members) [1]
    • Legislative offices (Division 22 members) [1]

    Connected fields

    Study and training described

    In the United States, ASPPB reports that most jurisdictions require a doctoral degree in psychology for licensure and that a majority require two years of supervised experience. These sources do not describe a rehabilitation-specific degree, residency or board certification in any country, so none is stated here. In the United Kingdom, rehabilitation psychology does not appear among the HCPC's nine protected titles.

    Titles and licensing, by jurisdiction

    United States
    ASPPB says each jurisdiction sets its own licensing rules, and most require a doctorate in psychology. No rehabilitation-specific license was found in the sources opened. [3]
    United Kingdom
    The HCPC's list of nine protected titles has no rehabilitation psychologist title. The sources opened do not describe a United Kingdom route for rehabilitation psychology. [4]

    What this does not show

    Rehabilitation work is shared with other professions, and these sources do not define the boundaries between them or any other profession's credentials. The Division 22 page lists settings but not employers or vacancies. Overlap with health, neuropsychology and clinical contexts is large. This guide is an educational resource, not professional, clinical or legal advice; check the current regulator.

    Sources

    1. [1]
      Membership Overview - Division of Rehabilitation PsychologySociety for Rehabilitation Psychology (APA Division 22), undated. Professional association.Selected text readRead an extract on the field description, fundamental goal and member settings (the page's About the Division section); the separate mission page was not read. The page opens with the division's 1956 founding wording, which is historical framing.
    2. [2]
      PsychologistsU.S. Bureau of Labor Statistics, Occupational Outlook Handbook, undated. Reference work.Selected text readRead an extract; used only for the rehabilitation psychologist description.
    3. [3]
      Requirements to PracticeAssociation of State and Provincial Psychology Boards (ASPPB), undated. Professional association.Selected text readRead an extract on doctorate, supervised experience and jurisdiction variation.
    4. [4]
      Understanding the regulation of psychologistsHealth and Care Professions Council (HCPC), 2023. Regulator.Selected text readRead an extract with the list of nine protected titles; the page is dated 16 January 2023.

    Independent source review: Claude Code reviewer agent, separate from the writer, 2026-10-21.

    Research and academic work

    Psychological research and university teaching involve designing studies, analyzing data, publishing, teaching and supervising students, in universities and other research settings.

    What people do

    In the United States, O*NET lists tasks for postsecondary psychology teachers that include lecturing to undergraduate and graduate students, evaluating coursework, conducting research and publishing findings, supervising students' research and laboratory work, and writing grant proposals. One listed task is providing clinical services, such as assessing psychological problems and conducting psychotherapy. APS says its members study all facets of behavior and cognition, from neurons to neighborhoods, and that psychological scientists follow academic paths, advocate for the use of psychological science in policymaking, or pursue research in non-academic settings.

    Where it happens

    • Colleges and universities [1]
    • Non-academic research settings [2]
    • Policy and advocacy work [2]

    Connected fields

    Study and training described

    In the United States, O*NET reports that survey respondents most often said a doctoral degree is required for new postsecondary psychology teachers, followed by post-doctoral training. APS describes itself as dedicated to the advancement of scientific psychology and lists supporting diverse careers for the next generation of scientists and educators among its pillars, without stating entry requirements. These sources state no license or protected title for research or teaching, and state no rule for any other country.

    Titles and licensing, by jurisdiction

    What this does not show

    These sources do not say that research training qualifies anyone for clinical practice; the O*NET tasks that mention clinical services are listed alongside teaching and research, and licensure is covered in the clinical context. Human-subjects law and ethics-review rules were not reviewed. APS describes a society's mission, not a hiring standard, and no positions are promised. This guide is an educational resource, not professional, clinical or legal advice; check the current regulator.

    Sources

    1. [1]
      Psychology Teachers, Postsecondary (25-1066.00)O*NET OnLine, sponsored by the U.S. Department of Labor, undated. Reference work.Selected text readRead an extract of the description, key tasks and education survey results; the extract shows no survey year.
    2. [2]
      About APSAssociation for Psychological Science (APS), undated. Professional association.Selected text readRead an extract of the mission, description of psychological science and members' careers; the page title is descriptive.

    Independent source review: Claude Code reviewer agent, separate from the writer, 2026-10-21.

    School and educational settings

    School-based psychologists assess learning and behavior needs, consult with educators and families, and support crisis response. United States school credentials and United Kingdom educational psychologist registration are separate systems.

    What people do

    NASP lists identifying and addressing learning and behavior challenges, supporting students' mental health and social-emotional development, analyzing data to improve teaching and learning, building family-school partnerships, and providing crisis prevention and response. O*NET adds interpreting test results for teachers, administrators and parents and developing individualized education plans with school staff. In the United Kingdom, Prospects describes educational psychologists assessing learning, development, well-being and emotional needs and advising schools and families.

    Where it happens

    • Public K-12 schools (United States) [1]
    • Early childhood programs, private and charter schools (United States) [1]
    • Education agency offices (United States) [1]
    • Mental health centers, hospitals and community agencies (United States) [1]
    • Local authority children's services (England and Wales) [4]

    Connected fields

    Study and training described

    In the United States, NASP states that school psychologists must be state certified or licensed, that most hold at least a specialist-level degree of about three years of full-time graduate study, and that many hold doctorates; graduate preparation includes supervised experience. In the United States, NASP also offers the NCSP, a national professional credential it says recognizes advanced preparation; it does not replace state certification or licensure. In the United Kingdom, Prospects describes a three-year HCPC-approved, BPS-accredited doctorate in educational psychology.

    Titles and licensing, by jurisdiction

    United States
    NASP says practice in the United States requires state certification or licensure. NASP also offers its own Nationally Certified School Psychologist (NCSP) credential; it is a national professional credential, not a state license. The Bureau of Labor Statistics says school psychologists typically need a credential from their state's board of education. No state's rules were read. [1] [3]
    United Kingdom
    The HCPC lists Educational psychologist as a protected title. Prospects says practice requires HCPC registration after postgraduate training in educational psychology. [5] [4]

    What this does not show

    In the United States, NASP says practice requires state certification or licensure, and the NCSP is a NASP credential, not a state license. The sources do not give any state's rules, so no single route is implied. In the United Kingdom, Educational psychologist is an HCPC protected title. Academic educational psychology is a different context with different credentials. This guide is an educational resource, not professional, clinical or legal advice; check the current regulator.

    Sources

    1. [1]
      What Is a School Psychologist?National Association of School Psychologists (NASP), undated. Professional association.Selected text readRead an extract on tasks, workplaces, graduate training, state certification or licensure, and the NCSP; NASP is an association, not a licensing board, and the page does not itself say the NCSP is not a state credential.
    2. [2]
      School Psychologists (19-3034.00)O*NET OnLine, sponsored by the U.S. Department of Labor, undated. Reference work.Selected text readRead an extract of the description and four listed tasks; survey education percentages were not used.
    3. [3]
      PsychologistsU.S. Bureau of Labor Statistics, Occupational Outlook Handbook, undated. Reference work.Selected text readRead an extract; used only for the statement on state board of education credentials.
    4. [4]
      Educational psychologistProspects (Jisc), undated. Reference work.Selected text readRead an extract on responsibilities, employers, qualification route and HCPC statements; salary and funding details were not used.
    5. [5]
      Understanding the regulation of psychologistsHealth and Care Professions Council (HCPC), 2023. Regulator.Selected text readRead an extract with the nine protected titles; the page is dated 16 January 2023.

    Independent source review: Claude Code reviewer agent, separate from the writer, 2026-10-21.

    Sport, exercise and performance

    Sport and performance psychology supports athletes, exercisers and other performers through assessment, skills work and research. AASP's CMPC certification and the United Kingdom protected title are different kinds of credential.

    What people do

    AASP's About page describes work with athletes from youth to elite levels, exercisers, tactical populations such as military personnel, firefighters and police officers, business professionals and performing artists, and says achieving peak performance is more than reaching peak fitness. In the United Kingdom, Prospects describes sport and exercise psychologists assessing client needs, then designing, delivering and evaluating strategies to address difficulties or improve performance, working with athletes, teams, coaches and referees, and, for exercise psychologists, encouraging exercise among the public, including people referred by general practitioners.

    Where it happens

    • Professional teams and governing bodies (United Kingdom) [3]
    • Universities and colleges, teaching and research (United Kingdom) [3]
    • General practice surgeries and NHS or private healthcare (United Kingdom) [3]
    • Private consultancy (United Kingdom) [3]

    Connected fields

    Study and training described

    In North America, including the United States, AASP describes the CMPC as its certification for mental performance consultants and says it is a growing prerequisite for working with various sport and performance populations. In the United Kingdom, Prospects describes a BPS-accredited master's in sport and exercise psychology followed by either the BPS Qualification in Sport and Exercise Psychology Stage 2, with a minimum of two years of full-time structured supervised practice, or an HCPC-approved professional doctorate, and says HCPC registration is required to practice.

    Titles and licensing, by jurisdiction

    North America (AASP certification)
    AASP says its Certified Mental Performance Consultant credential is the sole accredited certification for mental performance in North America. This is AASP's own description of an association certification; the sources opened do not state a license or protected title. United States psychology licensure is a separate system described in the clinical practice context. [1]
    United Kingdom
    The HCPC lists Sport and exercise psychologist as a protected title, and Prospects says all practicing sport and exercise psychologists must register with the HCPC. [4] [3]

    What this does not show

    A performance-coaching or certification course is not the same as clinical training, and these sources make no promise of improved performance. In the United Kingdom, Sport and exercise psychologist is an HCPC protected title, while AASP's CMPC is an association certification whose legal weight these sources do not cover. AASP's 1985 founding and 1989 certification criteria are society milestones, not the start of the field. Overlap with health, clinical and military contexts is large. This guide is an educational resource, not professional, clinical or legal advice; check the current regulator.

    Sources

    1. [1]
      About AASPAssociation for Applied Sport Psychology (AASP), undated. Professional association.Selected text readRead an extract on the domains of work, membership and the CMPC; the page does not name the accrediting body.
    2. [2]
      Our HistoryAssociation for Applied Sport Psychology (AASP), undated. Society history.Selected text readRead an extract on the 1985 founding, 1986 incorporation and 1989 certification criteria; this is society history, not the start of the field.
    3. [3]
      Sport and exercise psychologistProspects (Jisc), undated. Reference work.Selected text readRead an extract on responsibilities, work settings, qualification routes and HCPC statements; the BASES route was not used.
    4. [4]
      Understanding the regulation of psychologistsHealth and Care Professions Council (HCPC), 2023. Regulator.Selected text readRead an extract with the list of nine protected titles; the page is dated 16 January 2023.

    Independent source review: Claude Code reviewer agent, separate from the writer, 2026-10-21.

    Work and organizations

    Industrial-organizational and occupational psychology address selection, training, leadership, teams and organizational change. The United States field label and the United Kingdom protected title are not the same thing.

    What people do

    SIOP describes I-O psychology as addressing work-related issues at the individual and organizational level, with topics such as workforce planning, employee selection, leader development, job attitudes and motivation, work teams and organizational change. O*NET lists tasks such as providing advice on selection, facilitating organizational development and change, coaching executives and managers on leadership, developing tests and interview techniques, and evaluating training and workplace programs with statistical methods. In the United Kingdom, Prospects describes occupational psychologists supporting recruitment and selection, psychometric assessment, coaching and organizational change.

    Where it happens

    • Consulting firms (SIOP career paths) [2]
    • Government agencies (SIOP career paths) [2]
    • Human resources departments in industry (SIOP career paths) [2]
    • Colleges and universities (SIOP career paths) [2]
    • Consultancies and in-house roles (United Kingdom) [5]
    • Civil Service, NHS, police and prison and probation service (United Kingdom) [5]
    • Banks, insurers and psychometric test publishers (United Kingdom) [5]

    Connected fields

    Study and training described

    In the United States, the Bureau of Labor Statistics says industrial-organizational psychologists typically need a master's degree, with programs usually including statistics, research design and the relationships between people and workplaces. In the United Kingdom, Prospects describes a BPS-accredited psychology degree or conversion course, then a BPS-accredited master's degree in occupational psychology, followed by the BPS Qualification in Occupational Psychology Stage 2, whose completion allows an application for HCPC registration.

    Titles and licensing, by jurisdiction

    United States
    The Bureau of Labor Statistics says industrial-organizational psychologists typically need a master's degree. The sources opened do not state a license requirement specific to I-O work, and they do not equate the field label with any state title. [4]
    United Kingdom
    The HCPC lists Occupational psychologist as a protected title, and Prospects says working as an occupational psychologist in the United Kingdom requires HCPC registration. [6] [5]

    What this does not show

    Industrial-organizational psychology in the United States is a field label, and Occupational psychologist in the United Kingdom is a protected title; the sources opened do not establish that the two are equivalent. Which consulting, coaching or testing activities require a credential is not covered by these sources. Overlap with human factors, measurement and military contexts is large. This guide is an educational resource, not professional, clinical or legal advice; check the current regulator.

    Sources

    1. [1]
      SIOP Mission, Vision, ValuesSociety for Industrial and Organizational Psychology (SIOP), undated. Professional association.Selected text readRead an extract of the mission and description of I-O psychology.
    2. [2]
      I-O Career PathsSociety for Industrial and Organizational Psychology (SIOP), undated. Professional association.Selected text readRead an extract of the four career-path groupings; it states no education requirements, salary or job promise.
    3. [3]
      Industrial-Organizational Psychologists (19-3032.00)O*NET OnLine, sponsored by the U.S. Department of Labor, undated. Reference work.Selected text readRead the first 100,000 of about 148,000 characters, covering the description and key tasks; survey education percentages were not used.
    4. [4]
      PsychologistsU.S. Bureau of Labor Statistics, Occupational Outlook Handbook, undated. Reference work.Selected text readRead an extract; used for the I-O education statement only.
    5. [5]
      Occupational psychologistProspects (Jisc), undated. Reference work.Selected text readRead an extract on responsibilities, employers, qualification route and HCPC statements, partly as the fetch tool's paraphrase rather than quotation; salary was not used.
    6. [6]
      Understanding the regulation of psychologistsHealth and Care Professions Council (HCPC), 2023. Regulator.Selected text readRead an extract with the list of nine protected titles; the page is dated 16 January 2023.

    Independent source review: Claude Code reviewer agent, separate from the writer, 2026-10-21.