This document discusses creating a computerized adaptive test (CAT) program using the Concerto platform. It describes constructing an item bank, calibrating items, specifying the CAT, and evaluating the CAT against a paper test. The evaluation found the CAT measured the same ability as the paper test using fewer items and with greater precision. User feedback suggested improving ability to predict other scores and providing better feedback. In summary, the author created a functioning CAT program and found it performed better than a paper test while identifying opportunities to enhance the user experience.