The REx-PN is a new Canadian Practical Nurse exam developed for the British Columbia College of Nursing Professionals (BCCNP) and the College of Nurses of Ontario (CNO) to assist in making licensure decisions. The exam uses computerized adaptive testing (CAT) to measure each candidate’s competence to perform safely and effectively as a newly licensed, entry-level nurse. CAT is a method for administering exams that merges computer technology with modern measurement theory to increase the efficiency of the exam process. This video explains why CAT is used for the REx-PN and how it works. Topics covered include item selection and pass/fail rules. Find out more about the exam and CAT. Learn more at ncsbn.org/rex-pn.