Occupational Therapy Assistant Practice Test

Prepare for your test with realistic questions.

The National Board for Certification in Occupational Therapy (NBCOT) administers the Certified Occupational Therapy Assistant (COTA) exam for individuals pursuing a certification as a registered occupational therapy assistant in the United States.

Click “Start Test” above to take a free Occupational Therapy Assistant practice test!

COTA Exam Eligibility

To be eligible for the COTA exam, you must hold an occupational therapy degree from an ACOTE®-accredited OTA program.

COTA Exam Outline

The Occupational Therapy Assistant exam contains 190 questions and has a time limit of 4 hours.

There are two types of questions that appear on the COTA exam:

  • Multiple-choice: You must select one correct answer from a list of 3-4 answer choices.
  • Multi-select: You must select three correct answers from a list of 6 answer choices.

The exam is split into three content domains:

exam outline for the COTA exam

1. Collaborate and Gather Information (27%)
Five tasks are contained in this domain. The main goal of these tasks is to assist the OTR to gather knowledge about the variables that affect occupational performance over the course of occupational therapy.

2. Select and Implement Interventions (55%)
This domain is divided into six tasks. You must implement interventions to support client participation throughout the occupational therapy process.

3. Uphold Professional Standards and Responsibilities (18%)
There are only four tasks in this domain. You must uphold professional standards and responsibilities by applying interventions that promote quality practice.

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COTA Exam Registration

To register for the COTA exam, you must first create an online MyNBCOT account. Through this account, you can submit an application and the $540 examination fee. If you need to submit a paper application, the fee will increase to $595.

Once your application has been approved, you will receive an email with your authorization to test (ATT) and information about how to schedule your exam appointment. You must take the exam within three months of receiving your ATT.

Test Day

You should arrive at the testing center 15-30 minutes before the scheduled appointment time. Once you arrive, you will be asked to show two forms of valid identification, one of which must contain your photo. Your palm vein will then be biometrically scanned, and a photograph will be taken of you. This photograph will appear in the corner of your testing screen throughout your exam.

You will then be asked to leave all personal items in a secure locker outside the testing area. This includes any electronics, books, notes, jewelry, phone, and food items.

Once the examination begins, you will be allowed to take breaks as needed; however, the timer will not be stopped during your breaks.

How the COTA Exam is Scored

The Occupational Therapy Assistant exam is scored using a criterion-referenced scaling system. This system takes your raw score, which is the number of questions you answered correctly, and converts it to a numerical score on a scale of 300 to 600. You must achieve a score of at least 450 to pass.

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How to Study for the NBCOT COTA Exam

How to Study Effectively

Your success on COTA test day depends not only on how many hours you put into preparing but also on whether you prepared the right way. It’s good to check along the way to see whether your studying is paying off. One of the most effective ways to do this is by taking COTA practice tests to evaluate your progress. Practice tests are useful because they show exactly where you need to improve. Every time you take a free COTA exam practice test, pay special attention to these three groups of questions:

  • The questions you got wrong
  • The ones you had to guess on, even if you guessed right
  • The ones you found difficult or slow to work through

This will show you exactly what your weak areas are and where you need to devote more study time. Ask yourself why each of these questions gave you trouble. Was it because you didn’t understand the material? Was it because you didn’t remember the vocabulary? Do you need more repetitions on this type of question to build speed and confidence? Dig into those questions and figure out how you can strengthen your weak areas as you go back to review the material.

Answer Explanations

Additionally, many COTA practice tests have a section explaining the answer choices. It can be tempting to read the explanation and think that you now have a good understanding of the concept. However, an explanation likely only covers part of the question’s broader context. Even if the explanation makes sense, go back and investigate every concept related to the question until you’re positive you have a thorough understanding.

Comprehend Each Topic

As you go along, keep in mind that the COTA practice test is just that: practice. Memorizing these questions and answers will not be very helpful on the actual test because it is unlikely to have any of the same exact questions. If you only know the right answers to the sample questions, you won’t be prepared for the real thing. Study the concepts until you understand them fully, and then you’ll be able to answer any question that shows up on the test.

Strategy for COTA Practice

When you’re ready to start taking practice tests, follow this strategy:

  • Remove Limitations. Take the first test with no time constraints and with your notes and COTA study guide handy. Take your time and focus on applying the strategies you’ve learned.
  • Time Yourself. Take the second practice test “open book” as well, but set a timer and practice pacing yourself to finish in time.
  • Simulate Test Day. Take any other practice tests as if it were test day. Set a timer and put away your study materials. Sit at a table or desk in a quiet room, imagine yourself at the testing center, and answer questions as quickly and accurately as possible.
  • Keep Practicing. Keep taking practice tests on a regular basis until you run out of practice tests or it’s time for the actual test. Your mind will be ready for the schedule and stress of test day, and you’ll be able to focus on recalling the material you’ve learned.



How many questions are on the NBCOT COTA exam


There are 190 questions on the exam.


How long is the NBCOT COTA exam?


The time limit for the exam is 4 hours.


What is the passing score for the NBCOT COTA exam?


To pass the exam, you must achieve a scaled score of at least 450.


How much does the NBCOT COTA exam cost?


The examination fee is $540.

By Peter Rench

Peter Rench joined Mometrix in 2009 and serves as Vice President of Product Development, responsible for overseeing all new product development and quality improvements. Mr. Rench, a National Merit Scholar, graduated magna cum laude with a Bachelor of Science in Mechanical Engineering and a minor in mathematics from Texas A&M University.

NBCOT® is a registered trademark of the National Board for Certification in Occupational Therapy, Inc., which administers the NBCOT® exam. NBCOT does not endorse and is not affiliated in any way with Mometrix or its products and services.


by Mometrix Test Preparation | This Page Last Updated: January 3, 2024