Preventing Physical and Emotional Violence by Parents and Teachers in Public Schools in Tanzania (ICC-T/ICC-P_Tanz)

NCT ID: NCT06369025

Last Updated: 2025-09-19

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

1848 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-04-15

Study Completion Date

2025-07-30

Brief Summary

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More than 1.7 billion children worldwide experience violence in their upbringing. Prevalence rates are particularly high in Africa. Toxic stress associated with violence impacts the developing brain. This affects behavioral, social, and emotional functioning of children. The present project will test an intervention that simultaneously aims at reducing violence against children at home and at school. Within the project, (1) the feasibility, acceptability, and cost-effectiveness of the Intervention and (2) the initial effectiveness of reducing parental and teacher violence will be tested. To this end, a mixed-methods two-arm school-based pilot cluster-randomized controlled trial (CRCT) in Tanzania will be conducted.

One unique and novel aspect of this project is to test a school-based intervention approach that targets both teachers and parents. A school-based approach including both teachers and parents has the following key advantages: (1) parents of different social, economic, and educational backgrounds can be motivated to participate and (2) using the existing infrastructure of schools reduces costs and will later improve the scalability of the program. The project is bringing together the global health, development economy, and psychological perspectives to promote our collaboration within the German global health community and with research and policy partners in Tanzania.

Detailed Description

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The study is a two-arm cluster-randomized controlled trial with 16 primary schools (clusters) in the Urban District of Morogoro in Eastern Tanzania as level of randomization. The eligible schools are located in 20 wards (smallest administrative unit). To avoid cross-over effects between the study conditions, only one school per ward will be selected. To select the final sample of schools, 16 out of the 20 wards schools will be randomly selected and then one school from each ward. Then pairs of schools will be randomly formed. These has primarily logistical reasons: Due to the short project period (12 months), the implementation of the intervention will start after completion of the baseline assessment in the first pair of schools and after randomly allocation of the first school to the intervention condition. The selection and allocation of the schools will be performed by an independent researcher neither belonging to the core research team nor involved in data collection process.

At each school, 45 students in the in 5th school grade, 90 parents (45 mothers \& 45 fathers = 90 parents) and 25 teacher will be recruited. Thus the final sample will comprise 720 students, 720 parent pairs (720 mothers \& 720 fathers) and 400 teachers at baseline across 16 schools.

The study will have two data assessment points: baseline assessment prior to the intervention, the one follow-up assessment three months after the intervention. In addition, feasibility data will be assessed in the intervention group at the beginning and the end of the intervention. The cluster-randomized control trails will additionally be accompanied by a process evaluation.Qualitative information will be collected after intervention training of parents and teachers to complement the quantitative data.

Primary outcome measures are student-, parents- and teacher-reported physical and emotional violence by the parents or teachers in the past week. Secondary outcome measures include adult-child relationship, children's emotional and behavioral problems, quality of life, parents' and teachers' stress level and school climate.

Conditions

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Violence

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

DOUBLE

Participants Outcome Assessors

Study Groups

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ICC-T & ICC-P

ICC-T: 5 days with 8 hours of training for teachers. 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-P: 4 days with 8 hours of training for parents. Core training components include parents-student interaction, maltreatment prevention, effective discipline strategies, identifying and supporting burdened children and implementation of the training materials into the daily home setting

Group Type EXPERIMENTAL

Interaction Competencies with Children

Intervention Type BEHAVIORAL

Interaction Competencies with Children - for Teachers (ICC-T) 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.

Interaction Competencies with Children - for Parents (ICC-P) Core training components include parents-child interaction, maltreatment prevention, effective discipline strategies, identifying and supporting burdened students and implementation of the training materials into the home

Monitoring condition

No intervention

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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Interaction Competencies with Children

Interaction Competencies with Children - for Teachers (ICC-T) 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.

Interaction Competencies with Children - for Parents (ICC-P) Core training components include parents-child interaction, maltreatment prevention, effective discipline strategies, identifying and supporting burdened students and implementation of the training materials into the home

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

Schools:

* Public primary schools
* at least 45 students in selected class/ stream
* least 25 but no more than 50 employed teacher in selected school.

All participants:

\- Written informed consent (if underaged by parents (written) \& minors themselves (orally)

Students:

* Enrollment in selected public primary school, age between 9 and 13 years
* living with their caregiver or parents near to the schools

Teachers:

* employed at the selected schools
* aged between 18 and 60 years of age (statutory retirement age)

Parents:

* their child is participating in the study and is enrolled in a study's eligible school,
* social parent (the parent currently taking care of the child independent of the biological relationship to the children; social parents can be biological parents, step-parents, foster parents, relatives, etc.)
* aged between 16 and 80 years of age

Exclusion Criteria

* Acute drug or alcohol intoxication,
* acute psychotic disorder
* severe mental disabilities
Minimum Eligible Age

9 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Technical University of Munich

OTHER

Sponsor Role collaborator

Dar es Salaam University College of Edcuation

UNKNOWN

Sponsor Role collaborator

Muhimbili University of Health and Allied Sciences

OTHER

Sponsor Role collaborator

Bielefeld University

OTHER

Sponsor Role lead

Responsible Party

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Tobias Hecker, PhD

Prof. Dr.

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Tobias Hecker, Prof. Dr.

Role: PRINCIPAL_INVESTIGATOR

Bielefeld University

Locations

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Daressalaam University College of Education

Dar es Salaam, , Tanzania

Site Status

Countries

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Tanzania

References

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Mattonet K, Kabelege E, Mkinga G, Kolwey L, Nkuba M, Masath FB, Hermenau K, Schupp C, Steinert JI, Hecker T. School-based prevention of teacher and parental violence against children: Study protocol of a cluster-randomized controlled trial in Tanzania. BMC Public Health. 2024 Aug 31;24(1):2367. doi: 10.1186/s12889-024-19888-7.

Reference Type DERIVED
PMID: 39217292 (View on PubMed)

Other Identifiers

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PreVio

Identifier Type: -

Identifier Source: org_study_id

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