Efficacy of Health Beliefs Model-Based Intervention in Changing Substance Use Beliefs among Mosul University Students: A Randomized Controlled Trial

Substance use disorders (SUD) are a significant health concern worldwide. abuse is persistent problem linked to high rates of illness and loss. These issues also responsible for many healthcare workers bills. However, the problems associated with capitalize retrogradation, weakness death due impacts exceed. Throughout Iraq, there growing about effects violence war on drug use. To see how effective HBM-based intervention at changing college students' beliefs usage. Using randomized controlled trial approach, experimental design carried out throughout current study determine efficacy model-based in belief related substance among university students Mosul City from 26-November 2019 1-March 2021. The sample consisted 80 who participated training program behavioral change. group involved education lecture Analyzed data using SPSS, Version 23 both descriptive statistics inferential (Means, SD, Number percentage). results revealed statistically differences all concepts Health Belief Model use, adding motivation, control intention) overtime. On contrary, perceived barrier was only that showed no changes over time. According findings, an could impact cognition conduct field dependence. Given positive association across HBM dimensions pupils' opinions, notably "significant advantages regarded harshness," seemed have strong connection each other avoidance alcoholism. Keywords: Efficacy, Beliefs Model, Belief, Use, Students.