At the beginning of the study , both groups were asked to complete the Trait Anger Scale ( TAS ) of the State and Trait Anger Scale and the Self-Confident ( SCS ) and Hopeless ( HS ) subscales of the Stress Coping Styles Inventory ; pretest smoking status of both groups and their coping skills were compared with each other as soon as the program ended ( post-test results ) and after 3 and 6 months ( first and second follow-up tests ) .