Levin, M.E., Krafft, J., Pistorello, J., & Seeley, J.R. (2019) Assessing psychological inflexibility in university students: Development and validation of the acceptance and action questionnaire for university students (AAQ-US). Journal of Contextual Behavioral Science, 12, 199-206. https://doi.org/10.1016/j.jcbs.2018.03.004 The AAQ-US can be downloaded from the Utah State University ACT Research Group.
