The purpose of this study was to examine the relationship between self-efficacy in adolescents and PPAT (Person Picking an Apple From a Tree) assessment by analyzing the characteristics of responses. Three hundred students studying at B middle school in G-Prvince participated in the self-efficacy and PPAT assessment. We divided the 289 results into the top 27% (80 students) and bottom 27% (79 students) and analyzed them using the FEATS and Contents Scale of the PPAT assessment. All three evaluators, including myself, are art therapists. To improve reliability in the scoring, we evaluated one another’s scoring of the students’ results. To get the result I used an independent sample t test for FEATS and cross-scale analysis (x²) for the contents scale. Five criteria on the contests scale showed significant differences. Based on these results, I determined that the PPAT is useful as an objective method to support verbal psychological testing; moreover, I expect it to be useful as a supplemental diagnostic method to assess the self-efficacy levels of adolescents.