In the field of nursing, CAT plays a pivotal role primarily in the licensing and certification process. The National Council Licensure Examination (NCLEX) for Registered Nurses (RNs) and Practical Nurses (PNs) employs CAT to ensure a fair and efficient evaluation of a candidate's competency. By adjusting the difficulty of questions based on the candidate's responses, CAT can more accurately assess a nurseâs knowledge and skills.