The purpose of this study was to ascertain the validity and reliability of the original and extension scales (Activities form: section beliefs about skills) of Individual Spherical Inventory (PGI) in khorramabad students. Therefore 300 high school students (150 males and 150 females) were randomlysekected and were asked to complete the Individual Spherica Inventory and Betz Beliefs ab... https://www.opheliasmuse.com/