How the NCLEX CAT works
After each answer the exam estimates your ability. Answer correctly and the next question is a little harder; miss one and it is a little easier. Over time the questions settle at the level where you get about half right, which is your ability.
Throughout, the exam compares your ability with the passing standard. The NCLEX-RN and the NCLEX-PN each have their own standard.
When the NCLEX stops: the three rules
Every candidate answers at least 85 questions, and no one answers more than 150. The exam ends by one of three rules:
- 95% confidence: once your ability is clearly above or below the passing standard, the exam stops. Most candidates finish this way.
- Maximum length: if your ability stays close to the standard, you go to 150 questions and your final ability decides.
- Run out of time: after five hours, a candidate who has not answered the minimum fails; otherwise the final ability decides.
The number of questions does not tell you the result
Candidates pass and fail at 85 questions, and pass and fail at 150. A shut-off at 85 only means the exam was sure early. Some questions are unscored trial items, and you cannot tell which.
Practise on a CAT before test day
Our Adaptive Exams follow these rules for NCLEX-RN and NCLEX-LPN: the same minimum and maximum, the five-hour limit, the 95% confidence rule and each exam's passing standard. At the end you see whether you would have passed and your chance of passing.
CAT Exams are 85 questions untimed, with the rationale after each answer and questions you will not meet anywhere else in the bank, so you learn as you test.