This purpose of this study was to evaluate the reliability, validity, and classification accuracy of the proposed DSM-V revision for Gambling Disorder. It looked into if the proposed DSM-V revision for Gambling Disorder is an improvement over DSM-IV diagnostic criteria for Pathological Gambling. To compare DSM-V to DSM-IV, nine datasets from three different countries that used the same measure of DSM-IV criteria and that included the same reference standard of group membership in eight datasets were analyzed. The analyses included a total of 3,683 participants from Canada, USA and Spain. Participants were administered a standardized and valid measure of DSM-IV diagnostic criteria for Pathological Gambling. The proposed DSM-V yielded satisfactory reliability, validity and classification accuracy.
