en Clinical Psychology پژوهشي Research Article <div style="text-align: justify;"><span style="font-size:12px;"><span style="font-family:Tahoma;"><span style="line-height:normal"><span style="unicode-bidi:embed"><span calibri=""><b><span lt="" optima="" std=""><span style="color:black">Background and Objective:</span></span></b><span lt="" optima="" std=""> This study aimed to compare the effectiveness of reality therapy (RT) and acceptance and commitment therapy (ACT) programs in reducing high-risk sexual behaviors (HRSBs) among adolescents.</span></span></span></span><br> <span style="line-height:normal"><span style="unicode-bidi:embed"><span calibri=""><b><span lt="" optima="" std=""><span style="color:black">Materials and Methods:</span></span></b><span lt="" optima="" std=""> This quasi-experimental study was conducted based on a pretest-posttest control group design. The statistical population comprised all male students at the upper secondary schools in the city of Ghaen, South Khorasan Province, Iran, in the 2022-2023 academic year. Among them, 45 individuals were selected by purposive sampling method and then randomized into three groups in line with the inclusion and exclusion criteria. Afterward, they completed the High-Risk Sexual Behaviors Scale (HRSBS) at the pretest and posttest stages. During the intervention programs, the experimental groups (EGs) I and II respectively received RT and ACT for eight 90-minute sessions, while the CG was only given daily training. To analyze the data, the SPSS Statistics (version 24) software package and the univariate analysis of covariance (ANCOVA) were utilized, considering the statistical assumptions.</span></span></span></span><br> <span style="line-height:normal"><span style="unicode-bidi:embed"><span calibri=""><b><span lt="" optima="" std=""><span style="color:black"><span style="letter-spacing:.1pt">Results:</span></span></span></b><span lt="" optima="" std=""> The study results revealed that the RT program significantly reduced HRSBs; however, ACT exhibited no noteworthy effects in this vein. Moreover, a significant difference was detected between the effectiveness of both interventions in lowering HRSBs (P<0.001).</span></span></span></span><br> <span style="line-height:normal"><span style="unicode-bidi:embed"><span calibri=""><b><span lt="" optima="" std=""><span style="color:black">Conclusions:</span></span></b><span lt="" optima="" std=""> The present study ultimately demonstrated that the RT program was a better and more efficient practice for adolescents, as compared to ACT. It further provided a greater opportunity for counselors and therapists to manage the major problems facing this age group.</span></span></span></span></span></span></div> Reality Therapy, Acceptance-Commitment Therapy, High-Risk Sexual Behavior, Adolescents 102 107 http://ajnpp.umsha.ac.ir/browse.php?a_code=A-10-941-1&slc_lang=en&sid=1 Vahid Falahati falahaty2012@yahoo.com 10031947532846007915 10031947532846007915 No Department of Psychology, Qaenat Branch, Islamic Azad University, Qaenat, Iran Mahmoud PanahiShahri mpanahishahri@gmail.com 10031947532846007916 10031947532846007916 Yes Faculty of Educational and Psychology, Department of Educational Sciences, Payame Noor University, Tehran, Iran Hosein Sahebdel falahaty2012@yahoo.com 10031947532846007917 10031947532846007917 No Department of Counseling, Qaenat Branch, Islamic Azad University, Qaenat, Iran.