An observational study in Peer Bullying Intervention, Vodcast and Students, sponsored by Selcuk University. Recruiting at 1 site in Turkey (Türkiye). Open to participants aged 10 Years to 13 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-10-29.
Sponsored by Selcuk University · Observational
The purpose of this study is to evaluate the impact of an avatar-supported, teacher-student interactive, vodcast-based peer bullying prevention program-developed for adolescents-on students' ability to identify peer bullying, their experiences with bullying, fighting, and victimization, and their levels of empathy.
Designed as a non-randomized controlled study (quasi-experimental), this research will be conducted between October 2026 and December 2026 with students attending two public middle schools under the Ministry of National Education in the city center of Nevşehir. Based on an analysis using the G*Power (v3.1.9.7) software-with parameters set at an effect size of 0.5, a significance level of 0.05, and a test power of 0.80-the sample size has been determined to be 128 students in total, with 64 students in each of the experimental and control groups. Data will be collected using the "Student Demographic Information Form," the "Peer Bullying Identification Scale (Adolescent Form)," the "Illinois Bullying, Fighting, and Victimization Scale," and the "Empathy Scale for Children," all of which will be prepared by the researcher. During the intervention phase, the experimental group will watch five avatar-supported, teacher-student interactive vodcasts (educational video content), while the control group will receive no intervention. Data analysis will involve the Independent Samples t-test, as well as the Pearson Chi-square and Fisher's Exact tests for categorical data. A Mixed-Design Analysis of Variance (Mixed ANOVA) will be used to compare variables across follow-up time points, and the Bonferroni correction will be applied when comparing main effects. A p-value of \<0.05 will be considered statistically significant; ethical principles will be strictly upheld throughout the study, with a focus on obtaining parental consent and ensuring the voluntary participation of students.
57 studies on the registry are indexed under Bullying; 9 are open to participants now.
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The study group will consist of students enrolled in the specified schools. A medium effect size (Cohen's d = 0.50) was used as a reference for this study. Power analysis was conducted using the G*Power 3.1.9.6 software. The analysis employed an independent samples t-test to examine the difference between two independent groups, based on a two-tailed hypothesis, an effect size of 0.50, a power of 80% (1-β = 0.80), a significance level of 0.05 (α = 0.05), and an allocation ratio of 1:1 between the groups. The calculations indicated that a total sample size of 128 students (64 in the intervention group and 64 in the control group) would be sufficient for the study.
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Exclusion Criteria
Withdrawal Criteria
Students in the intervention group will participate in a vodcast-based peer bullying prevention program, consisting of a total of five sessions, with one session held per week.
Behavioral: Vodcast-Based Peer Bullying Intervention
Students in the control group will follow the routine procedure; once the post-test data collection is complete, the program designed for the intervention group will be presented in a single-day session for any students who wish to view it.
Students in the intervention group will participate in a vodcast-based peer bullying prevention program, consisting of five sessions-one session per week. As part of the program, vodcasts covering a different theme related to peer bullying will be presented each week within the school setting, in a quiet and suitable classroom environment designed to minimize distractions. The sessions will be conducted under the supervision of the researcher, ensuring that all students watch the vodcasts under consistent technical conditions. Each session will last approximately 20 minutes; during the first part, students will watch that week's vodcast, followed by a discussion in which the researcher will pose open-ended questions to encourage students to reflect on the content.
Student Information Form
This form, created by the researchers, will be administered on the first day of the first week-prior to the start of the intervention-taking into account the specific circumstances of the school and the classrooms where the implementation will take place.
Time frame: First measurement-First week,The first day of the week
Peer Bullying Scale Adolescent Form
This form will be administered on the first day of the first week-prior to the start of the intervention-taking into account the specific circumstances of the school and the classrooms where the implementation will take place.
Time frame: First measurement-First week,The first day of the week
Illinois Bullying, Fighting, and Victimization Scale
This form will be administered on the first day of the first week-prior to the start of the intervention-taking into account the specific circumstances of the school and the classrooms where the implementation will take place.
Time frame: First measurement-First week,The first day of the week
Empathy Scale for Children Empathy Scale for Children
This form will be administered on the first day of the first week-prior to the start of the intervention-taking into account the specific circumstances of the school and the classrooms where the implementation will take place.
Time frame: First measurement-First week,The first day of the week
Peer Bullying Scale Adolescent Form
This form will be administered on the first day of the fifth week, following the completion of the intervention, while taking into account the specific conditions of the school and the classrooms where the implementation takes place.
Time frame: Second measurement-Fifth week,The first day of the week
Illinois Bullying, Fighting, and Victimization Scale
This form will be administered on the first day of the fifth week, following the completion of the intervention, while taking into account the specific conditions of the school and the classrooms where the implementation takes place.
Time frame: Second measurement-Fifth week,The first day of the week
Empathy Scale for Children
This form will be administered on the first day of the first week-prior to the start of the intervention-taking into account the specific circumstances of the school and the classrooms where the implementation will take place.
Time frame: Second measurement-Fifth week,The first day of the week
Plan to share: No
No publications or documents are linked to this record.
Started Oct 2026 (actual). Primary completion is estimated for Dec 2026, 1 month after the start.
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From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
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