CAT exams simulate the real NCLEX by using the same methodology and cut-off rules. You will be constantly challenged by the computer to determine your level of ability. If you get a question correct, you will receive a harder question; if you get a question incorrect, you will receive an easier question. If your testing ability is at or above the passing threshold, you will pass; if it is below the passing threshold, you will fail.
The computer will end your exam when one of the three NCLEX cut-off rules is achieved:
- 95% confidence rule: After the minimum number of questions is taken (85), the test will end when the computer has reached a confidence interval of at least 95%.
- Maximum length rule: The test will automatically end if the maximum number of questions are taken (150).
- Run out of time (ROOT) rule: The test will automatically end if the maximum length of time is reached (5 hours).