deltatrials
Completed NA INTERVENTIONAL 2-arm NCT04948580

Preventing Violence by Teachers Against Children in Sub-Saharan Africa (EVIDENCE)

Reducing Violence by Teachers Against Children: A Multi-Site Cluster Randomized Controlled Trial of Interaction Competencies With Children - for Teachers (ICC-T) in Primary and Secondary Schools in Tanzania, Uganda and Ghana

Sponsor: Bielefeld University

Updated 10 times since 2021 Last updated: Sep 16, 2025 Started: Sep 20, 2021 Primary completion: Dec 31, 2024 Completion: Jul 31, 2025
This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

Listed as NCT04948580, this NA trial focuses on Violence by Teachers and remains completed. Sponsored by Bielefeld University, it has been updated 10 times since 2021, reflecting substantial change activity. This study adds to the evidence base for this therapeutic area through structured, versioned documentation.

Study Description(click to expand)

The study is a multi-site cluster randomized controlled trial with schools (clusters) as level of randomization. Multi-stage random sampling will be applied to select three zones per country (Tanzania, Uganda and Ghana) and one district in each zone. In each district, eight public schools will be randomly selected, resulting in a total number of 72 schools (24 per country). Schools will be stratified based on school type (primary or secondary school) and location (rural or urban), leading to 36 sites or cluster pairs (3 countries x 3 zones x 2 school types x 2 locations). In each site, one school will be randomly allocated to the intervention group (that will receive the ICC-T intervention) and one school to the control group (that will receive no intervention). At each school, 40 students (stratified by gender) in the third year of primary school or in the first year of secondary/junior high school and all teachers (expected average number: 20) will be recruited. Thus the final sample will comprise 2880 students and at least 1440 teachers. The study will have three data assessment points: baseline assessment prior to the intervention, the first follow-up assessment six months after the intervention and the second follow-up...

The study is a multi-site cluster randomized controlled trial with schools (clusters) as level of randomization. Multi-stage random sampling will be applied to select three zones per country (Tanzania, Uganda and Ghana) and one district in each zone. In each district, eight public schools will be randomly selected, resulting in a total number of 72 schools (24 per country). Schools will be stratified based on school type (primary or secondary school) and location (rural or urban), leading to 36 sites or cluster pairs (3 countries x 3 zones x 2 school types x 2 locations). In each site, one school will be randomly allocated to the intervention group (that will receive the ICC-T intervention) and one school to the control group (that will receive no intervention).

At each school, 40 students (stratified by gender) in the third year of primary school or in the first year of secondary/junior high school and all teachers (expected average number: 20) will be recruited. Thus the final sample will comprise 2880 students and at least 1440 teachers.

The study will have three data assessment points: baseline assessment prior to the intervention, the first follow-up assessment six months after the intervention and the second follow-up assessment 18 months after the intervention. In addition, feasibility data will be assessed in the intervention group at the beginning and the end of the intervention.

Primary outcome measures are student- and teacher-reported physical and emotional violence by teachers in the past week. Secondary outcome measures include teachers' attitudes towards violence against students, children's emotional and behavioral problems, quality of life, and cognitive functioning.

Status Flow

~Sep 2021 – ~Oct 2021 · 30 days · monthly snapshotNot Yet Recruiting~Oct 2021 – ~Nov 2021 · 31 days · monthly snapshotRecruiting~Nov 2021 – ~Mar 2023 · 16 months · monthly snapshotRecruiting~Mar 2023 – ~May 2024 · 14 months · monthly snapshotRecruiting~May 2024 – ~Jul 2024 · 2 months · monthly snapshotRecruiting~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshotRecruiting~Sep 2024 – ~Sep 2025 · 12 months · monthly snapshotRecruiting~Sep 2025 – ~Oct 2025 · 30 days · monthly snapshotRecruiting~Oct 2025 – present · 6 months · monthly snapshotCompleted~Jan 2026 – present · 3 months · monthly snapshotCompleted

Change History

10 versions recorded
  1. Jan 2026 — Present [monthly]

    Completed NA

  2. Oct 2025 — Present [monthly]

    Completed NA

    Status: RecruitingCompleted

  3. Sep 2025 — Oct 2025 [monthly]

    Recruiting NA

  4. Sep 2024 — Sep 2025 [monthly]

    Recruiting NA

  5. Jul 2024 — Sep 2024 [monthly]

    Recruiting NA

Show 5 earlier versions
  1. May 2024 — Jul 2024 [monthly]

    Recruiting NA

  2. Mar 2023 — May 2024 [monthly]

    Recruiting NA

  3. Nov 2021 — Mar 2023 [monthly]

    Recruiting NA

  4. Oct 2021 — Nov 2021 [monthly]

    Recruiting NA

    Status: Not Yet RecruitingRecruiting

  5. Sep 2021 — Oct 2021 [monthly]

    Not Yet Recruiting NA

    First recorded

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • Bielefeld University
  • Daressalaam University College of Education (DUCE)
  • Mbarara University of Science and Technology (MUST)
  • Presbyterian University College Ghana (PUCG)
Data source: Bielefeld University

For direct contact, visit the study record on ClinicalTrials.gov .