How the NCLEX decides pass or fail

A fixed-length test gives everyone the same questions. The NCLEX does not. Every time you answer, the computer re-estimates your ability from all your answers so far and the difficulty of those items. The next item is one you should find challenging: not too easy, not too hard. With each answer the estimate gets more precise.

NCSBN says each item is chosen from a large pool using three criteria:

1. It comes from the content area that keeps your exam closest to the test plan percentages.
2. It matches your current ability estimate, so it tells the computer the most about you.
3. A repeat candidate does not see the same item again in the current item pool.

Every exam also carries 15 unscored pretest items. Their difficulty is not known yet, so they are left out of your ability estimate and the pass/fail decision. You cannot tell them apart from scored items.

Every exam is between 85 and 150 items and has a 5-hour limit, breaks included. One of three rules decides the result:

• The 95% confidence interval rule

  The most common way the exam ends. After the minimum number of items, the computer stops when it is 95% certain your ability is clearly above or clearly below the passing standard.

• The maximum-length rule

  If your ability stays very close to the passing standard, the exam runs to the maximum number of items. The computer then drops the 95% rule and looks only at your final ability estimate: at or above the passing standard is a pass, below it is a fail.

• The run-out-of-time rule (R.O.O.T.)

  If time runs out before the maximum, and you have not answered the minimum number of items, the result is a fail. If you have answered the minimum, the exam is scored on the final ability estimate from every item you completed: at or above the passing standard is a pass.

The length of your exam is not a sign of the result. You can pass or fail at any length. Once you confirm an answer you cannot go back to it, so NCSBN’s advice is to keep a reasonable pace and read each item carefully.

The passing standard is the minimum ability NCSBN’s Board of Directors judges necessary for safe and effective entry-level practice. The board reviews it every three years. The NCLEX-RN and NCLEX-PN are scored on separate scales, each with its own standard, and the same standard applies to every exam.

Every exam is scored twice: by the computer at the test center, then again after the record reaches Pearson. Test center staff never see results.

Sources: NCSBN, 2026 NCLEX-RN Test Plan (PDF); NCSBN, 2026 NCLEX Candidate Bulletin (PDF). Checked against NCSBN as of October 29, 2026.

Sources: NCLEX.com, Frequently Asked Questions; NCSBN, 2026 NCLEX Candidate Bulletin (PDF). Checked against NCSBN as of October 29, 2026.

• NCLEX-RN test plan and NCLEX-PN test plan
• Reading the Candidate Performance Report after a failed attempt
• NCLEX question types and partial credit