Design And Validation Of A Subjective Outcome Evaluation Tool For Substance Abuse Interventions Among High School Students: Positive Youth Development Model

Background: Evaluation of audience perspective about the quality of interventions using a reliable and valid tool is not only of great importance in assessing the program results, but this information can also be utilized to reform and promote next interventions. The present study was conducted with the aim of designing a subjective outcome evaluation tool for a positive youth development model-based intervention as well as carrying out a psychometric test on it.Materials and Methods: This study aimed to evaluate an intervention implemented based on the positive youth development model. The students, who had participated in the program from schools in Isfahan. First, a 16-item initial researcher-made questionnaire was designed, its construct validity stages were performed using an exploratory factorial analysis, and its internal reliability was determined through calculating the Cronbach's alpha.Results: In the psychometric testing process, the 16 items of the questionnaire were confirmed based on the exploratory factorial analysis; and the dimensions of the subjective outcome evaluation for the positive youth development model-based intervention were divided into 3 factors. The sum of all the three factors explained 62.85% of the variance of variables. The internal reliability was calculated based on a Cronbach's alpha coefficient of 0.91.Conclusion: Due to its firm factorial structure and appropriate psychometric properties, the 16-item subjective outcome evaluation tool for the positive youth development model-based intervention is a valid and reliable instrument, and its use can be a reliable and productive reflection of the utility and quality of future interventions in this regard.