The Effect of "Teachers' Corrective Feedback" on the Expression and Mental Vitality of Female Students with Depression Syndrome in High School

Depression is one of the most common mental disorders and its growing prevalence among students has become a concern. The aim of this study was to determine the effect of "Teachers' Corrective Feedback" on the expression and mental vitality of female students with depression syndrome in high school in Kangavar city.

This research was a quasi-experimental study in which a pretest-posttest design with a control group was used. The sample of the study was 40 subjects who were among the female high school students with depression syndrome, receiving a score higher than the cut-off point of 18 out of 63 in the "Beck Depression Inventory II” of Kangavar city (Kermanshah province). Samples were selected by convenience sampling method and by simple random sampling method, they were assigned to the intervention groups of "Teachers' Corrective Feedback" (20 people) and control (20 people).Demographic questionnaire, "Assertiveness Scale" and "Mental Vitality Scale" were used to collect data in the pretest and posttest stages for the intervention and control groups. Content validity was measured by qualitative method and reliability by internal consistency method by calculating Cronbach's alpha coefficient. For the intervention group, they received "Teachers' Corrective Feedback" for 10 sessions of 90 minutes per session. During this period, the control group did not receive any intervention. Data were analyzed in SPSS. 24. 

Analysis of covariance showed a significant difference between the two groups (P <0.01). In addition, the level of assertiveness and mental vitality of the intervention group increased significantly compared to the control group (P <0.01).

"Teachers' Corrective Feedback" has a positive and significant effect on the level of assertiveness and mental vitality of students with depression syndrome. It is suggested that teachers use "Teachers' Corrective Feedback" to increase the expression and mental vitality of female students with depression syndrome.