What Is an IRB and Why Do You Need It?
The IRB (Institutional Review Board) is a university committee that reviews research involving human subjects to ensure ethical treatment of participants. You must obtain IRB approval before collecting any data from people for your dissertation. The typical process takes 2 to 6 weeks depending on your review level (Exempt, Expedited, or Full Board), and often requires multiple revision cycles before final approval. Plan to submit your application at least 30 to 60 days before you intend to begin data collection.
The Institutional Review Board (IRB) is an independent committee established at colleges and universities to protect the rights and welfare of human research participants. Its mandate comes from federal regulations—primarily the Common Rule (45 CFR 46)—which require any institution receiving federal research funding to review studies involving people.
Even if your university does not receive federal funding, most institutions maintain an IRB because:
- Ethical standards require researcher accountability regardless of funding source
- Graduation requirements often mandate formal approval for any human-subjects dissertation research
- Institutional policy demands oversight to protect both participants and the university from liability
If your dissertation involves collecting data through surveys, interviews, observations, or experiments involving living people, the IRB must approve your protocol before you recruit a single participant. There are no retroactive approvals.
Which Studies Require IRB Review?
You need IRB approval whenever your research meets both of these criteria:
- It is systematic investigation designed to develop or contribute to generalizable knowledge (your dissertation fits this by definition)
- It involves human subjects—living individuals about whom you collect identifiable data or interact with them
Common dissertation examples that require IRB approval:
- Interview-based qualitative studies
- Survey research collecting demographic or opinion data
- Focus groups and classroom observations
- Comparative studies involving human performance
- Pilot studies that feed into your main dissertation data
Common examples that do not require IRB approval:
- Analysis of existing, fully de-identified datasets
- Literature-based or theoretical dissertations with no data collection
- Case histories used strictly for clinical education purposes
If you are unsure whether your study qualifies as human-subjects research, consult your faculty advisor or your university’s IRB office directly. They make the final determination.
Understanding the Three Levels of IRB Review
Your review level determines who evaluates your application and how long the process takes.
| Review Level | Risk Profile | Who Reviews | Typical Timeline |
|---|---|---|---|
| Exempt | Very low risk; minimal data collected | IRB staff | 1–2 weeks |
| Expedited | Minimal risk; involves identifiable or sensitive data | One or more IRB members | 2–4 weeks |
| Full Board | Greater than minimal risk; vulnerable populations | Convened IRB committee | 4–6 weeks |
Exempt does not mean you skip review—it means a staff member verifies your study fits a federal exemption category. The IRB still makes a formal determination.
Full Board review requires you to attend to a scheduled committee meeting (typically held once per month). You must submit at least 2–3 weeks before the meeting date, and revisions may push your approval to the next cycle.
When to Choose Which Level
Many student dissertations qualify for Exempt or Expedited review. You generally submit your preferred level on the application form, but the IRB reviewer makes the final classification. Do not self-classify as Exempt if your study collects identifiable information—this is the most common error students make.
Step 1: Complete Required Ethics Training
Before you submit anything, complete your institution’s mandatory human-subjects research training. The most widely accepted program is the CITI Program (Collaborative Institutional Training Initiative), which offers:
- Social and Behavioral Research course covering informed consent, risk assessment, and confidentiality
- Defining Research with Human Subjects module
- Federal Regulations overview
Your CITI certificate must be current (usually within the past 2–3 years). If your certificate is expired, renew it before starting the application. Your faculty advisor also needs to have current certification and will be listed as your Principal Investigator (PI).
Pro tip: Some universities use alternative training programs like AAAHR. Check your IRB office’s website for a list of accepted training providers.
Step 2: Prepare Your Research Protocol
Your research protocol is the core document your dissertation proposal and IRB submission both reference. It should include:
- Research questions and objectives
- Background and significance of your study
- Methodology with detailed procedures
- Sampling plan (population, recruitment strategy, inclusion/exclusion criteria)
- Data collection instruments (survey questions, interview guides, experimental tasks)
- Analysis plan (how you will process and interpret the data)
The Dissertation Coach’s director of research, Jessica Parker, notes that the single most common error she sees in IRB applications is vague recruitment plans. Students write "I will send recruitment emails" without explaining how participants will actually reach out or what instructions they will receive. Provide enough detail that the IRB can picture every participant interaction.
Step 3: Draft Participant-Facing Materials
The IRB reviews everything a participant sees. Prepare these documents:
Informed Consent Form
Your consent form must explain in plain language:
- The purpose and duration of the study
- What participants will be asked to do
- Any potential risks (physical, psychological, social, financial)
- How confidentiality and data storage will be maintained
- The voluntary nature of participation and the right to withdraw without penalty
- Contact information for your research team and the IRB
Use the consent form templates provided by your university’s IRB office—these are usually available in Mentor IRB, Cayuse, or your institution’s submission portal.
Recruitment Materials
Every recruitment method you plan must be submitted:
- Email invitations
- Social media posts
- Course announcements
- Poster or flyer content
The IRB reviews these to ensure they do not contain coercive language or misleading claims about the study.
Data Collection Instruments
Submit complete copies of:
- Survey or questionnaire items
- Interview guides or discussion protocols
- Experimental task instructions
If your survey includes sensitive questions (e.g., about health, finances, or illegal behavior), the IRB may require additional justification for asking them and enhanced confidentiality protections.
Step 4: Obtain Faculty Advisor Approval
For student investigators, your faculty advisor must serve as your Principal Investigator on the IRB application. The IRB does not accept student-led applications without faculty oversight.
The process typically requires:
- Submit draft materials to your advisor for review
- Revise your protocol based on feedback
- Get formal sign-off (signature or electronic approval)
- List your advisor as PI on the application portal
The Teachers College at Columbia University emphasizes that your faculty sponsor must electronically "accept" your protocol in their institutional system (such as Mentor IRB) before the IRB begins review. Without this step, your application stalls.
Step 5: Submit Your Application
Submission methods vary by institution. Common platforms include:
- Mentor IRB (used by Columbia, Penn, and many others)
- Cayuse (widely used by research offices)
- IRBNet
- BruinIRB (UCLA-specific)
- Institutional email-based submission (some smaller universities)
Regardless of the platform, your submission package should include:
- Completed application form
- Research protocol
- Informed consent form
- All recruitment materials
- Data collection instruments
- CITI certification (for you and your PI)
- Faculty advisor approval documentation
Submitting Before or After Your Proposal Defense?
At many institutions, you can submit pre-dissertation research (such as pilot studies) to the IRB before your proposal hearing. However, full dissertation research must be submitted after your proposal hearing is successfully completed. The IRB approval letter for dissertation research must be dated post-proposal to satisfy graduation requirements.
Teachers College at Columbia University specifies that an IRB approval letter for pre-dissertation research will not satisfy the Office of Doctoral Studies’ graduation requirements. Only the post-proposal hearing approval letter does.
Check your institution’s graduate handbook for the exact sequence.
Understanding IRB Timelines and Revisions
Expect your first submission to not be approved immediately. This is normal and expected. The IRB exists to protect participants, and reviewers almost always request clarifications.
Typical Revision Scenarios
| Common Feedback | What to Do |
|---|---|
| Clarify how you will protect confidentiality | Add specific storage procedures, encryption methods, and data access limits |
| Revise consent language to be less intimidating | Simplify technical terms; add a plain-language summary at the top |
| Expand recruitment instructions | Detail the exact text of emails, posts, and participant response steps |
| Justify sensitive questions | Explain why the question is necessary and how you will mitigate discomfort |
| Address sample size justification | Cite power analysis or peer-reviewed methodology sources |
The IRB reviewer will send you a Request for Revisions memo. Respond to every point, use tracked changes in your documents, and resubmit all revised files. The Teachers College IRB recommends using their memo template to keep your responses organized.
Timeline Estimates by Review Level
| Review Level | Estimated Wait | Notes |
|---|---|---|
| Exempt | 1–2 weeks | No committee meeting required |
| Expedited | 2–4 weeks | Reviewer may schedule a brief conference call |
| Full Board | 4–6 weeks | Must align with monthly committee meeting schedules |
Factor in 1 to 2 additional weeks for revisions. Many students budget a 4 to 6 week window from first submission to approval.
Common IRB Approval Mistakes Students Make
Avoiding these pitfalls will speed your approval:
1. Submitting Before CITI Training Is Complete
You cannot submit without a current CITI certificate. Complete training first.
2. Leaving Recruitment Materials Out
The IRB cannot approve a study if they cannot review the materials participants will see. Include every email, flyer, and post text.
3. Vague Data Protection Statements
"I will keep data safe" is insufficient. Specify: encrypted storage, password protection, who has access, and how long you will retain the data.
4. Self-Classifying as Exempt When You’re Not
If you collect identifiable data, do not select Exempt. The reviewer will downgrade your application and delay approval.
5. Forgetting to List Your Advisor as PI
Student applications require a faculty PI. Without this, the application is rejected administratively.
6. Waiting Until the Last Minute
The IRB cannot approve research that has already been conducted. Plan ahead—most students need 30 to 60 days from submission to approval.
Tips for Staying on Track
| Strategy | Why It Matters |
|---|---|
| Submit early | Do not wait until your methods chapter is complete. Begin IRB prep as soon as your proposal is approved. |
| Use the portal | Monitor your application status regularly. Many students wait passively; proactive monitoring catches reviewer messages faster. |
| Consult your advisor | Keep your faculty mentor looped in. They may anticipate IRB concerns before they arise. |
| Document every revision | Keep a log of IRB feedback and your responses. This helps if the same reviewer evaluates your revised application. |
| Plan for outside sites | If you are conducting research at a hospital, school district, or corporation, you need a Letter of Site Authorization before IRB approval. |
Frequently Asked Questions
How long is IRB approval valid?
Most approval letters have a one-year expiration date. If your study extends beyond that, you must submit a continuing review request or renewal application.
What happens if I collect data before getting approval?
Conducting research without IRB approval is a violation of federal regulations. Your IRB approval may be denied, and your dissertation timeline will be delayed until you remediate the violation through your institution’s compliance office.
Can I change my research after IRB approval?
Yes, but you must submit a modification request to the IRB before implementing any changes to your protocol, consent form, or recruitment materials. Do not implement changes without prior approval.
Do all universities require IRB approval?
Most universities in the United States do. Some institutions may have alternative compliance offices or may exempt certain types of educational research. Always check with your specific institution’s requirements.
What if my research has no human subjects?
You still may need to submit an exemption determination to confirm your study does not involve human subjects. This formal acknowledgment satisfies many graduation requirements.
Final Thoughts
The IRB approval process is often intimidating for first-time researchers, but it is structured, predictable, and manageable when you prepare thoroughly. The key steps are straightforward: complete training, draft your protocol, gather all participant materials, obtain faculty advisor sign-off, and submit through your university’s portal.
Budget 4 to 6 weeks from first submission to approval, and factor in at least one revision cycle. Most students who prepare carefully receive approval within that window and begin data collection with full confidence in the ethical rigor of their work.
Related Guides
- How to Write a Methodology Chapter for Your Dissertation
- Dissertation Proposal: Essential Tips for Success
- Thesis and Dissertation Writing Services
- Research Proposal Writing Service
Need personalized guidance with your IRB application? Our team of PhD-level researchers can help you draft protocols, design consent forms, and navigate the IRB process. Get a free consultation and ensure your research meets the highest ethical standards.