 This study established the content validity of the self-regulation assessment, CERA, in a multicultural and multi-diagnostic post-rehabilitation population. Cognitive interviews were conducted with former rehabilitation patients from different cultural backgrounds to identify any issues with the items. Based on the feedback received, some items were revised or deleted while two missing concepts were added. The final version of the CERA demonstrated content validity for the studied population and is now ready for further psychometric analysis. This article was authored by Tonya Moll, Tonya Moll, Eileen Shulton and others.