The NBCOT OTR (Occupational Therapist Registered) exam is the national certification exam you must pass to practice as a licensed occupational therapist in the United States. Administered by the National Board for Certification in Occupational Therapy, the OTR exam is taken by OT graduates after completing an accredited master's or doctoral program. You cannot practice as an OT without passing this exam first.
The exam consists of 200 questions delivered over 4 hours on a computer. What makes the OTR exam unique is its computer-adaptive format for the final 70 questions — the difficulty of those questions adjusts based on your previous answers. The first 130 questions are fixed, while the adaptive section zeros in on your true competency level. To pass, you need a scaled score of at least 450 out of 600.
Studying with a PDF practice test gives you a portable, printable resource you can use anywhere — at a library, in a coffee shop, or during a commute. PDF practice lets you annotate questions, highlight key concepts, and simulate timed test conditions without a screen. Many OT candidates find that working through printed questions strengthens retention compared to purely digital study. Download our free PDF below and use it alongside your NBCOT prep strategy.
The NBCOT OTR exam is organized around four content domains that reflect the occupational therapy practice process. Understanding these domains is essential — they tell you exactly where to focus your study time.
This domain covers everything involved in gathering information about a client before intervention begins. You need to know how to collect an occupational profile, select and administer standardized assessments, and interpret norm-referenced and criterion-referenced tests. Key assessment tools tested include the COPM (Canadian Occupational Performance Measure), FIM (Functional Independence Measure), MMSE, Barthel Index, and the Bruininks-Oseretsky Test of Motor Proficiency. You should understand interview techniques, observation methods, and medical record review. Roughly one in five exam questions come from this domain.
After data collection, the OT must analyze and synthesize what was found. This domain tests your clinical reasoning — can you identify occupational performance strengths and barriers, determine a client's priorities, and decide on the most appropriate intervention approach? Questions here often present case vignettes requiring you to weigh multiple factors: diagnosis, environment, culture, and client goals. You'll need to understand how to formulate an occupational therapy diagnosis and justify your reasoning within a chosen frame of reference. This is the second largest domain and heavily tests critical thinking over memorization.
The largest domain by weighting, this section tests your ability to design a comprehensive, evidence-based intervention plan. You must know how to write measurable short-term and long-term goals, select appropriate frames of reference, and choose activities that match the client's context and priorities. Core frames of reference you must know include: Model of Human Occupation (MOHO), Person-Environment-Occupation-Performance (PEOP) model, Biomechanical frame of reference, Sensory Integration frame of reference, and Cognitive Disabilities (Allen) model. Activity analysis — breaking tasks into component steps to identify demands and modifications — is a high-frequency topic. You should also understand how to prioritize goals, involve the client in planning, and coordinate with interdisciplinary team members.
This domain covers the hands-on delivery of OT services and ongoing reassessment. Topics include therapeutic use of self, therapeutic activities, ADL and IADL training, assistive technology prescription, splinting and orthotics, home modification, caregiver training, and discharge planning. You need to know when to progress, modify, or discontinue interventions based on client response. Questions frequently involve pediatric, adult, and geriatric populations across inpatient, outpatient, school, and community settings. Documenting outcomes, safety precautions, and transitioning clients to appropriate levels of care are also tested here.
The NBCOT offers two certification exams. The OTR exam is for Occupational Therapists Registered — graduates of master's or doctoral OT programs who will perform evaluations, design intervention plans, and supervise COTAs. The COTA exam is for Certified Occupational Therapy Assistants — graduates of two-year associate-level OTA programs who implement interventions under OTR supervision. The two exams share overlapping content but differ in scope, depth, and level of clinical reasoning required. The OTR exam has a heavier emphasis on evaluation, differential diagnosis reasoning, and frame of reference selection. If you're an OTR candidate, every practice question in this PDF is relevant to your exam.
Print the PDF and work through questions in 50-question timed blocks to simulate real exam conditions. After each block, review every question — not just the ones you missed. For correct answers, confirm you understood why it was correct; for wrong answers, identify which domain it falls under and add that domain to your study priority list. Use the answer explanations to build conceptual understanding rather than memorizing isolated facts. The NBCOT OTR exam rewards candidates who can apply knowledge to novel case scenarios, so always ask yourself what principle a question tests and how you'd apply it differently.
For additional OT practice quizzes, sample questions by domain, and full-length timed practice tests, visit the OT Master of Occupational Therapy practice test page.