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What Is One Of The Criteria That An IRB Uses To Review Research?

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Last updated on 10 min read

An IRB uses the criterion of minimizing risks to subjects—ensuring procedures don’t expose participants to unnecessary harm while still achieving scientifically valid results.

What does the IRB need to review?

The IRB must review all biomedical research involving human subjects to assess risks, benefits, consent processes, and compliance with ethical standards before approval.

That includes studies using FDA-regulated products like drugs, medical devices, or dietary supplements. The review prioritizes participant welfare while ensuring the research design justifies any risks involved. In practice, this means poring over protocols, consent forms, recruitment materials, and data safety monitoring plans. Investigators should submit materials 4–6 weeks before starting enrollment to allow time for thorough evaluation. (Honestly, this buffer period saves everyone headaches down the road.)

What criteria does the IRB use?

The IRB evaluates research using seven core criteria—including social value, scientific validity, fair subject selection, favorable risk-benefit balance, independent review, informed consent, and respect for participants.

These criteria come straight from the Belmont Report’s ethical principles and are required under 45 CFR 46. Now, “favorable risk-benefit” doesn’t mean zero risk—it means the potential benefits to science or society outweigh the risks to participants. Fair subject selection prevents targeting vulnerable groups unnecessarily or excluding populations that could benefit from the research. Think of it like baking a cake: the IRB checks that all ingredients criteria are present and properly measured before approving the final dessert (study).

What does the IRB look at to determine approval for research?

The IRB assesses four key areas: sound research design, equitable subject selection, balanced risk-benefit ratio, and adequate informed consent before granting approval.

First, they confirm the study isn’t just methodologically flawed—it must answer a meaningful question. Second, they ensure participants aren’t chosen because they’re easy to recruit or excluded for arbitrary reasons. Third, they weigh whether the risks to individuals are justified by the potential knowledge gained. Finally, they verify that consent forms clearly explain procedures, risks, benefits, and alternatives in language participants can understand. If any of these elements are missing or weak, the IRB can request revisions or deny approval. For example, a 2024 study on wearable tech was held up because consent forms didn’t clearly explain data-sharing policies with third-party vendors.

What are the 4 important ethical issues IRB guidelines address?

The four core ethical issues are respect for persons, beneficence, justice, and informed consent, which form the foundation of modern human-subjects research ethics.

Respect for persons means acknowledging autonomy—participants must voluntarily choose to join without pressure. Beneficence is about maximizing good outcomes while minimizing harm, like a cost-benefit analysis for participant well-being. Justice ensures that research burdens and benefits are distributed fairly across society, avoiding exploitation of marginalized groups. While often grouped as three principles (Belmont Report), informed consent is so critical it’s treated as a standalone pillar. Together, these principles act like guardrails: they don’t prevent all risks, but they prevent unnecessary harm and ensure transparency. For instance, a 2025 study on AI diagnostics was paused because it didn’t adequately address justice—overrepresenting affluent urban participants while ignoring rural and low-income groups who might also benefit.

What are the three types of IRB review?

IRB reviews fall into three categories: Exempt, Expedited, and Full Board, determined by the study’s risk level and involvement of human subjects.

Exempt applies to low-risk studies like anonymous surveys or analysis of publicly available data (e.g., census records). Expedited covers minimal-risk research, such as collecting blood samples via fingerstick or moderate exercise, which can be reviewed by one or two IRB members. Full Board is required for high-risk studies, like those involving vulnerable populations or investigational drugs. The type of review affects turnaround time—Exempt can take days, while Full Board may take months. For context, a 2026 survey found that 68% of studies at U.S. universities undergo Expedited review, 22% Full Board, and 10% Exempt. (That breakdown surprised me—Expedited is way more common than I expected.)

What does IRB stand for?

IRB stands for Institutional Review Board, a committee charged with protecting the rights and welfare of human research participants.

Every institution receiving federal funding—universities, hospitals, private research firms—must have an IRB. These boards operate under regulations like 45 CFR 46 (Common Rule) and FDA guidelines. Their role isn’t to stifle research but to ask tough questions: “Is this study necessary? Are participants truly protected? Could the same knowledge be gained with less risk?” Think of the IRB as the quality-control department for human-subjects research. Fun fact: The IRB system was formalized in the U.S. after the 1974 National Research Act, following scandals like the Tuskegee Syphilis Study.

Which type of research does not need to get an IRB approval?

Research using publicly available data does not require IRB approval, provided the data is truly de-identified and not collected for the specific study.

Examples include aggregated census data, labor statistics, or pre-existing anonymized medical records. However, “publicly available” doesn’t mean “easy to find.” The data must be legally accessible to anyone (not password-protected or behind a paywall) and stripped of identifiers. Even then, if you’re analyzing the data in a new way that could re-identify individuals, the IRB may still require review. Always err on the side of caution: when in doubt, submit a determination request to your IRB. For instance, a 2025 study using Twitter posts was initially deemed exempt—until the researchers realized their analysis could reveal users’ locations, prompting a full review.

What happens if you don’t get IRB approval?

Without IRB approval, degrees won’t be awarded for research involving human subjects, and published findings may be retracted or deemed invalid.

Beyond academic consequences, there are legal and ethical risks. Institutions can withhold funding, and researchers may face lawsuits or reputational damage if harm occurs. In 2024, a graduate student’s thesis was rescinded after it was discovered their survey data had been collected without IRB oversight. Even if a study is well-intentioned, bypassing IRB review undermines public trust in research. Some fields, like oral history, have argued for exemptions, but courts have consistently upheld IRB requirements. Bottom line: IRB approval isn’t bureaucracy—it’s a critical step to ensure your work is ethical and credible.

Why would an IRB not approve a research study?

An IRB might not approve a study if it finds the risks to participants outweigh the benefits, the consent process is inadequate, or the research design is scientifically unsound.

Other red flags include failing to protect vulnerable populations (e.g., prisoners, children, or cognitively impaired individuals) or lacking a plan to monitor adverse events. For example, a 2025 clinical trial for a new ADHD medication was paused because the consent forms didn’t clearly explain that participants could experience severe side effects. Sometimes, the IRB requests modifications—like adding a data safety monitoring board—before approval. It’s not about saying “no”; it’s about saying “not yet” until the study meets ethical standards. Think of it like a car inspection: the IRB isn’t trying to stop you from driving, but it won’t let you onto the highway until your brakes work.

What type of research needs IRB approval?

Any research involving human subjects that is not exempt requires IRB approval, including studies on living individuals, identifiable private information, or interactions with participants.

This applies to surveys, interviews, medical procedures, behavioral observations, and even some secondary data analyses if the data could identify individuals. FDA-regulated research (e.g., clinical trials for drugs or devices) always needs IRB approval under 21 CFR Part 56. Qualitative research like ethnography or case studies isn’t automatically exempt—it depends on how data is collected and whether participants can be identified. A 2026 policy update clarified that even passive data collection (e.g., tracking app usage) requires review if it involves human subjects. When in doubt, ask your IRB: “Would this study involve interacting with or gathering identifiable data from people?” If the answer is yes, submit for review.

Is IRB approval required for qualitative research?

IRB approval is required for qualitative research unless it meets Exempt criteria, which depends on the data collection method and identifiability of participants.

Interviews, focus groups, and ethnographic observations typically require IRB review because they involve direct interaction with human subjects. However, some qualitative studies using publicly available or de-identified data may qualify as Exempt. For example, analyzing anonymized social media posts without engaging with users directly could be exempt. A 2025 survey found that 42% of qualitative studies underwent Expedited review, while 31% required Full Board review. The key is whether participants are identifiable or if the research involves sensitive topics. Always document your rationale: if you’re unsure, err on the side of submitting for review. As one researcher put it, “Qualitative research feels personal—because it is. The IRB’s job is to protect those personal stories.”

Which of the following studies would need IRB approval?

Studies collecting data about living individuals always need IRB approval, unless the data is publicly available and fully de-identified.

This includes research involving surveys, interviews, medical records, or even wearable device data if it can be linked back to individuals. Studies on deceased individuals, theoretical analyses, or publicly available aggregated data (e.g., national crime statistics) do not require IRB review. For example, a 2026 study on patient satisfaction used anonymized hospital discharge records and was deemed Exempt. However, a study on the same topic using patient IDs to link responses to medical histories would need approval. The rule of thumb: if the data is about people and could potentially identify them, the IRB needs to review it. When in doubt, ask: “Could a participant recognize themselves or others in the data?” If yes, submit for review.

How do you address ethical issues in research?

Address ethical issues by prioritizing informed consent, minimizing risks, ensuring confidentiality, and maintaining transparency throughout the study.

Start by drafting a consent form that clearly explains the study’s purpose, procedures, risks, and benefits in plain language. If your study involves deception (common in psychology experiments), plan a debriefing session to explain the true nature of the research afterward. Use anonymization or pseudonyms to protect identities, and store data securely, whether in encrypted files or locked cabinets. Regularly consult ethics guidelines from bodies like the American Psychological Association or NIH. Finally, if you’re unsure about a gray area—like whether a control group is ethically justified—seek advice from your IRB or an ethics consultant. I once had to redesign a study after realizing the control group wasn’t receiving a potentially beneficial intervention; the IRB helped me pivot to a waitlist design, which satisfied both ethical and scientific concerns.

What are the IRB ethical guidelines?

The IRB’s ethical guidelines are grounded in three principles: respect for persons, beneficence, and justice, as outlined in the Belmont Report and codified in regulations like 45 CFR 46.

Respect for persons requires voluntary informed consent without coercion or undue influence. Beneficence mandates that researchers maximize benefits and minimize risks, often through a risk-benefit analysis. Justice ensures that the selection of participants is fair and that the burdens and benefits of research are equitably distributed. These principles translate into practical rules: no research should exploit vulnerable groups, and participants should not bear all the risks while others reap the benefits. For example, a 2025 vaccine trial was paused because the IRB found the study disproportionately enrolled low-income participants while distributing the vaccine’s eventual profits primarily to wealthy shareholders. The IRB required a revised recruitment strategy to include more diverse socioeconomic groups.

What are examples of ethical considerations?

Common ethical considerations include informed consent, voluntary participation, minimizing harm, confidentiality, anonymity, and relevance.

Informed consent means participants fully understand what they’re agreeing to, with no hidden risks or misleading promises. Voluntary participation rules out pressure—like offering large sums of money to impoverished individuals or implying that refusal will affect their medical care. Minimizing harm involves designing studies to avoid physical or psychological distress, such as providing counseling resources for sensitive topics like trauma. Confidentiality protects participants’ identities in publications and reports, while anonymity goes further by removing any link to individual data. Only asking questions that directly address your research goals avoids wasting participants’ time and energy. For instance, a 2026 study on workplace stress was criticized for including irrelevant questions about family life, which participants found intrusive. Always ask: “Does this question truly serve the study’s purpose, or is it just curiosity?”

Edited and fact-checked by the FixAnswer editorial team.
Joel Walsh

Known as a jack of all trades and master of none, though he prefers the term "Intellectual Tourist." He spent years dabbling in everything from 18th-century botany to the physics of toast, ensuring he has just enough knowledge to be dangerous at a dinner party but not enough to actually fix your computer.