CATs provide many advantages over traditional testing methods, but some disadvantages as well.
These will be discussed within the context of K-12 education. This adaptive approach to testing is designed to ensure that each student sees questions that are close to their true ability level. Questions that are too difficult or too easy provide no knowledge about a student's knowledge and are, therefore, never seen by any student. The frustration that accompanies questions of this type is removed from the CAT experience as the student test taker creates their path through the test. Different students will answer different questions based on their ability level.