%0 Journal Article %T The Efficacy of the Growing Pro %A Daniel Rijo %A Jos¨¦ Pinto-Gouveia %A Maria do C¨¦u Salvador %A N¨¦lio Braz£¿o %J Journal of Research in Crime and Delinquency %@ 1552-731X %D 2018 %R 10.1177/0022427818782733 %X This randomized controlled trial aimed to assess the efficacy of a cognitive-behavioral group program, Growing Pro-Social (GPS), in reducing anger, shame, and paranoia over time in Portuguese male prison inmates. Participants were randomized to the GPS treatment (n = 121) or control group (n = 133). The State-Trait Anger Expression Inventory, the Other as Shamer Scale, and the Paranoia Scale were completed at baseline, at the middle of treatment, at posttreatment, and at 12 months¡¯ follow-up. Intervention effects were tested with latent growth curve models (LGCM). At baseline, no significant differences between groups were found. Results from LGCM showed that condition was a significant predictor of change observed in all outcome measures over time. While treatment participants showed a significant increase in anger-control over time, controls presented a significant decrease over time in this same variable. For the remaining dimensions of anger, as well as for external shame and paranoia, while the treatment group showed a significant decrease over time, the control group showed a significant increase or no change. These results pointed out the GPS¡¯s ability to promote significant change in cognitive and emotional relevant variables associated with antisocial behavior %K anger %K external shame %K Growing Pro-Social %K male prison inmates %K paranoia %U https://journals.sagepub.com/doi/full/10.1177/0022427818782733