Addressing a pervasive problem in educational institutions, investigation into academic dishonesty by students has produced a vast body of empirical research, mostly based on self-report measures. However, the literature repeatedly points to inconsistencies in assessment methods and unclear measurement quality. We conducted a preregistered systematic review to provide a comprehensive overview of self-report assessments (including past cheating behavior and cheating intentions), and to evaluate operationalizations and psychometric quality. In 256 instruments of 231 studies, 70% were unique self-report measures, meaning newly created or adapted instruments, and 38.7% of studies did not investigate or report psychometric quality criteria. As such, the academic dishonesty literature is no exception in questionable measurement practices (Flake & Fried, 2020), where reports often lack key measurement information, such as the full item list (missing in 32%) or the time frames for behavioral assessment (missing in 50.4%). Our findings also illustrate how a lack of psychometric understanding of the construct and inconsistencies regarding the spectrum of academic cheating behaviors (Simha & Cullen, 2012) threatens the interpretability and comparability of research findings. Our findings can assist researchers in the selection of suitable measures to assess academic dishonesty, and thereby raise the comparability, replicability and validity of study results.