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What Is an Institutional Review Board?

In psychology research, an institutional review board (also known as an IRB) is a group of individuals who review and monitor research that involves human subjects.

Institutional review boards help ensure that the rights, welfare, and safety of participants are protected. They also help safeguard that psychology studies follow ethical and research guidelines such as acquiring informed consent and debriefing subjects.

Institutional review boards review and approve the studies you read about in psychology textbooks and journal articles. It’s important to know they are also responsible for approving student research.

If you are planning to conduct a psychology study or experiment for one of your psychology classes and it involves working with human subjects, you will likely be required to submit your proposal to your school’s institutional review board to gain approval before you begin.

What Does an Institutional Review Board Do?

Institutional review boards:

  • Evaluate the possible benefits and risks of psychological research
  • Determine if research proposals are ethical
  • Ensure that researchers follow standards and guidelines
  • Members review research proposals to ensure that they comply with both federal and institutional policies.

Why Do Institutional Review Boards Exist?

  • Institutional review boards are federally mandated
  • They are also required by the American Psychological Association (APA)

Formalized institutional review boards originated largely as a response to unethical studies and research abuses that occurred throughout the 20th century.

Experiments such as the Tuskegee Syphilis Study and Cold War-era human radiation experiments help shed light on the need for ethical guidelines and review boards.

Other controversial experiments, such as the Milgram obedience experiment and the Stanford prison experiment, contributed to the emergence and refinement of ethical codes of research conduct.

Milgram’s experiment involved deceiving participants into believing that they were delivering real shocks to another human subject. The experiment aimed to see just how far people were willing to go to obey authority.

The research found that a large percentage of people were willing to deliver what they believed might be potentially lethal shocks to another person when ordered to do so by an authority figure. Milgram’s results were shocking, to say the least, but his methods were perhaps even more so, leading many participants to experience considerable distress.

History of Institutional Review Boards

The National Research Act of 1974 first outlined the main ethical principles that must be followed when working with human subjects.

Institutional review boards are required and governed by rules found in Title 45 Part 46 and Title 21 Parts 50 and 56 of Federal Regulations.

These guidelines detail a number of issues, including things like freedom from coercion or force, the possible risks of research, the potential benefits of the research, and the physical and mental safety of the participants.

Institutional Review Board Requirements

Institutional review boards also review research that involves special populations, including students, individuals with cognitive impairments, children, prisoners, and pregnant women.

The APA explains:

“Institutional Review Boards (IRBs) are federally-mandated, locally-administered groups charged with evaluating human participant research. IRBs, and human participant research in general, have come under increased scrutiny by legislators, regulators, the media, and the public, in part because of recent events where research participation resulted in harm to some participants.”

According to Federal rules, all institutional review boards must have:

  • At least five members
  • All members must have the knowledge and expertise to sufficiently determine if research is ethical and safe
  • Members should be informed and experienced about special populations if research proposals involves such groups
  • IRBs should involve members from a range of professions
  • Review boards should include both men and women
  • There must be at least one scientist and one non-scientist
  • The group must include at least one person not affiliated with the institution

Institutional review board is a generic term, so specific institutions may use different titles for these review boards.

Does Your Study Need Approval From an Institutional Review Board?

Do all studies require IRB approval? Those conducting research must first consult their institution’s guidelines to determine if they must submit their proposal for institutional review board approval.

In most cases, any study involving the systematic investigation of any living human subject must be submitted to an institutional review board.

In some cases, studies that involve looking at existing or archival data might also require IRB approval if the study involves research on identifiable, living human subjects.

For example, a researcher with access to existing student data such as grades or test scores would have to obtain institutional review board approval to utilize this data in his or her research.


Eissenber, T., et al. (n.d.). IRBs and psychological science: Ensuring a collaborative relationship. American Psychological Association.

 Part 5: Institutional review boards. Food and Drug Administration.

 Image: Nick Cowie /