NCT04948580

Brief Summary

Violence has severe and long-lasting negative consequences for children's and adolescents' well-being and psychosocial functioning, thereby also hampering communities' and societies' economic growth. Studies show high prevalence of violence by teachers against children in Sub-Saharan Africa, both in countries where violence is lawful as disciplinary measure at school and in countries where it has been officially banned. In addition to legal and structural factors (e. g. stressful working conditions for teachers), attitudes favoring violence against children as an effective and acceptable discipline method and the lack of access to alternative non-violent strategies are likely to contribute to teachers' ongoing use of violence against children. Notwithstanding, there are currently very few school-level interventions to reduce violence by teachers that a) have been scientifically evaluated and b) that focus both on changing attitudes towards violence and on equipping teachers with non-violent discipline strategies. Thus, the present study tests the effectiveness of the preventative intervention Interaction Competencies with Children - for Teachers (ICC-T) in primary and secondary schools in Tanzania, Uganda and Ghana. Previous studies have provided initial evidence on the feasibility and effectiveness of ICC-T to reduce teacher violence in primary and secondary schools in Tanzania and secondary schools in Uganda. This study aims to provide further evidence for the effectiveness of ICC-T to reduce violence and to improve children's functioning (i.e. mental health, well-being, academic performance) across educational settings, societies and cultures.

Trial Health

90
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
3,264

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Sep 2021

Longer than P75 for not_applicable

Geographic Reach
3 countries

3 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 28, 2021

Completed
4 days until next milestone

First Posted

Study publicly available on registry

July 2, 2021

Completed
3 months until next milestone

Study Start

First participant enrolled

September 20, 2021

Completed
3.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2024

Completed
7 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 31, 2025

Completed
Last Updated

September 19, 2025

Status Verified

September 1, 2025

Enrollment Period

3.3 years

First QC Date

June 28, 2021

Last Update Submit

September 16, 2025

Conditions

Keywords

school violenceteacher violenceinterventionteachersstudentsprimary schoolssecondary schools

Outcome Measures

Primary Outcomes (2)

  • Change of students' exposure to emotional and physical violence by teachers

    The Conflict Tactics Scale (CTS) will be used to assess students' self-reported experiences of emotional and physical violence by teachers at school in the past week. Higher scores indicate higher levels of violence that is used by teachers. A change of exposure to violence in the intervention group is hypothesized.

    The CTS will be used at T1 (baseline, prior to intervention), T2 (first follow-up, 6 months after intervention) and T3 (second follow-up, 18 months after intervention).

  • Change of teachers' use of emotional and physical violence

    The Conflict Tactics Scale (CTS) will be used to assess teachers' use of emotional and physical violent discipline measures against students in the past week. Higher scores indicate higher levels of violence that is used by teachers. A change in the use of violence in the intervention group is hypothesized.

    The CTS will be used at T1 (baseline, prior to intervention), T2 (first follow-up, 6 months after intervention) and T3 (second follow-up, 18 months after intervention)

Secondary Outcomes (4)

  • Change of teachers' positive attitudes towards emotional and physical violence

    The adapted version of CTS will be used at T 1 (baseline, prior to intervention), T2 (first follow-up, 6 months after intervention) and T3 (second follow-up, 18 months after the intervention).)

  • Change of student's mental health

    The PSC-Y will be used at T1 (baseline, prior to intervention), T2 (first follow-up, 6 months after intervention) and T3 (second follow-up, 18 months after intervention)

  • Change of students' quality of life

    The KIDSCREEN-10 will be used at T1 (baseline, prior to intervention), T2 (first follow-up, 6 months after intervention) and T3 (second follow-up, 18 months after intervention) ]

  • Change of students' cognitive functioning

    The Psych Lab 101 application will be used at T1 (baseline, prior to intervention), T2 (first follow-up, 6 months after intervention) and T3 (second follow-up, 18 months after intervention)

Other Outcomes (3)

  • Change of students' academic performance

    The standardized achievement tests will be used at T1 (baseline, prior to intervention), T2 (first follow-up, 6 months after intervention) and T3 (second follow-up, 18 months after intervention).

  • Change of students' social competence

    The Social Cognitive Map Technique - peer nomination will be used at T1 (baseline, prior to intervention), T2 (first follow-up, 6 months after intervention) and T3 (second follow-up, 18 months after intervention).

  • Change of peer victimization

    The MPVS-24 will be used at T1 (baseline, prior to intervention), T2 (first follow-up, 6 months after intervention) and T3 (second follow-up, 18 months after intervention).

Study Arms (2)

ICC-T

EXPERIMENTAL

5.5 days with 8 hours of training for teachers aiming at changing attitudes towards violence and equipping teachers with non-violent discipline strategies

Behavioral: Interaction Competencies with Children - for Teachers (ICC-T)

Monitoring condition

NO INTERVENTION

No intervention

Interventions

Core training components include teacher-student interaction, maltreatment prevention, effective discipline strategies, identifying and supporting burdened students and implementation of the training materials into the school setting

ICC-T

Eligibility Criteria

Age7 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • All: Written informed consent (if underaged by parents (written) \& minors themselves (oral or written)
  • Students: Enrollment in class 3 of primary school or in class 1 of secondary school
  • Teachers: All teachers employed at the school
  • Schools:
  • Public schools
  • Mixed-gender schools
  • Day schools
  • At least 40 students in selected class/stream

You may not qualify if:

  • Acute drug or alcohol intoxication
  • Acute psychotic disorder

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

Presbyterian University College Ghana

Abetifi, Ghana

Location

Daressalaam University College of Education

Dar es Salaam, Tanzania

Location

Mbarara University of Science and Technology

Mbarara, Uganda

Location

Related Publications (1)

  • Scharpf F, Kirika A, Masath FB, Mkinga G, Ssenyonga J, Nyarko-Tetteh E, Nkuba M, Karikari AK, Hecker T. Reducing physical and emotional violence by teachers using the intervention Interaction Competencies with Children - for Teachers (ICC-T): study protocol of a multi-country cluster randomized controlled trial in Ghana, Tanzania, and Uganda. BMC Public Health. 2021 Oct 24;21(1):1930. doi: 10.1186/s12889-021-11950-y.

Study Officials

  • Tobias Hecker, Prof. Dr.

    Bielefeld University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

June 28, 2021

First Posted

July 2, 2021

Study Start

September 20, 2021

Primary Completion

December 31, 2024

Study Completion

July 31, 2025

Last Updated

September 19, 2025

Record last verified: 2025-09

Data Sharing

IPD Sharing
Will not share

Locations