The certification examination is composed of up to 175 multiple-choice questions. Examinees will have four and one-half (4½) hours to complete the examination.
The recertification examination is composed of up to 100 multiple-choice questions. Examinees will have three (3) hours to complete the examination.
Some questions include interpretation of images. Each question contains four options or choices, only one of which is the correct or best answer.
The examination questions were developed by the CBNC Examination Committee, an expert panel of the CBNC, under the guidance of Knapp & Associates International, Inc. The examination question pool is updated on a regular basis to reflect current knowledge. Individual questions are modified or deleted based on statistical analysis of the examination.
The CBNC retains Knapp & Associates International, Inc. of Princeton, NJ, to provide assistance in the development of the examinations. Knapp & Associates International is a research and development firm that serves certification bodies by planning, developing, and administering assessment procedures and programs designed to measure professional competence.