This course studies the process of developing physics education instruments, both test and non-test, up to the stage of testing the quality of the instrument. This course studies how to test the quality of physics education instruments in the form of non-tests using EFA (Exploratory Factor Analysis), Rasch Analysis, and CFA (Confirmatory Factor Analysis) in addition to deepening instrument quality testing in the form of tests (Question Item Analysis). This course also introduces software for validating physics education assessment instruments such as ANATES, SPSS, AMOS, and Winstep. Lectures are carried out using repository discussion methods, workshops, collaborative learning, classroom discussions, and software tutorials.