A Randomized Controlled Trial to Evaluate the Effectiveness of a Theory of Planned Behavior-Based Educational Intervention in Reducing Internet Addiction Among Adolescent Girls in Southern Iran.

Internet addiction among adolescents has emerged as a significant global health issue, contributing to social isolation, academic difficulties, and emotional disorders, with excessive use of social networks further intensifying these challenges. This study evaluated the effectiveness of an education...

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Publicado en:Adolescents (2673-7051) Vol. 5; no. 3; pp. 33 - 50
Autores principales: Shirdel, Fatemeh, Mobasheri, Narges, Kaveh, Mohammad Hossein, Hassanzadeh, Jafar, Ghahremani, Leila
Formato: research tables/charts randomized controlled trial Journal Article
Publicado: MDPI Sep2025
Acceso en línea:Ver este registro en EBSCOhost
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      dt: Sep2025
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      pub: MDPI
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        atl: A Randomized Controlled Trial to Evaluate the Effectiveness of a Theory of Planned Behavior-Based Educational Intervention in Reducing Internet Addiction Among Adolescent Girls in Southern Iran.
      aug:
        au:
          Shirdel, Fatemeh
          Mobasheri, Narges
          Kaveh, Mohammad Hossein
          Hassanzadeh, Jafar
          Ghahremani, Leila
        affil: Department of Health Promotion and Education, School of Health, Shiraz University of Medical Sciences, Shiraz 7153675541, Iran
      sug:
        subj:
          Internet Addiction Prevention and Control
          Internet Addiction Education
          Women Psychosocial Factors
          Health Education Methods
          Behavioral Changes Evaluation
          Ajzen's Theory of Planned Behavior
          Psychosocial Intervention
          Academic Performance
          Program Evaluation
          Outcomes of Education
          Iran
          Human
          Female
          Adolescence
          Randomized Controlled Trials
          Random Assignment
          Intention
          Random Sample
          Cluster Analysis
          Comparative Studies
          Questionnaires
          Pretest-Posttest Control Group Design
          Repeated Measures
          Analysis of Variance
          Patient Attitudes
          Descriptive Statistics
          Chi Square Test
          T-Tests
          Post Hoc Analysis
          Data Analysis Software
          Funding Source
          Adolescent: 13-18 years
          Female
      ab: Internet addiction among adolescents has emerged as a significant global health issue, contributing to social isolation, academic difficulties, and emotional disorders, with excessive use of social networks further intensifying these challenges. This study evaluated the effectiveness of an educational intervention grounded in the Theory of Planned Behavior (TPB) in reducing Internet addiction and enhancing academic performance among adolescent girls in southern Iran. A randomized controlled trial was conducted with 370 female students aged 15–16 years, selected through two-stage cluster random sampling and divided equally into intervention and control groups. The intervention group participated in a five-week TPB-based program, incorporating lectures, group discussions, and parent–teacher meetings, while the control group received unrelated health education. Data were collected using the Yang Internet Addiction Test (IAT), a TPB-based questionnaire, and academic performance scores (grade point average, GPA) before and after the intervention. A repeated measures ANOVA revealed significant improvements in attitudes, subjective norms, perceived behavioral control, and intentions to reduce Internet use (p < 0.001). Internet addiction scores significantly declined, and GPA improved in the intervention group compared to the control group (p < 0.001, Cohen's d = 0.950). The findings support TPB-based interventions as effective tools for reducing Internet addiction and improving academic outcomes among adolescents. This study was registered with the Iranian Registry of Clinical Trials (IRCT20131014015015N18).
      pubtype: Academic Journal
      doctype:
        research
        tables/charts
        randomized controlled trial
        Journal Article
      ougenre: Article
    language: English
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