protocolSection identificationModule nctId: NCT06369025, orgStudyIdInfo id: PreVio, briefTitle: Preventing Physical and Emotional Violence by Parents and Teachers in Public Schools in Tanzania (ICC-T/ICC-P_Tanz), acronym: PreVio, statusModule overallStatus: RECRUITING, startDateStruct date: 2024-04-15, primaryCompletionDateStruct date: 2025-02-28, completionDateStruct date: 2025-07-30, studyFirstPostDateStruct date: 2024-04-16, lastUpdatePostDateStruct date: 2024-04-17, sponsorCollaboratorsModule leadSponsor name: Bielefeld University, class: OTHER, collaborators name: Technical University of Munich, collaborators name: Dar es Salaam University College of Edcuation, collaborators name: Muhimbili University of Health and Allied Sciences, descriptionModule briefSummary: 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., conditionsModule conditions: Violence, designModule studyType: INTERVENTIONAL, phases: NA, designInfo allocation: RANDOMIZED, interventionModel: PARALLEL, primaryPurpose: PREVENTION, maskingInfo masking: DOUBLE, whoMasked: PARTICIPANT, whoMasked: OUTCOMES_ASSESSOR, enrollmentInfo count: 1840, type: ESTIMATED, armsInterventionsModule interventions name: Interaction Competencies with Children, outcomesModule primaryOutcomes measure: Reduction of children's exposure to emotional and physical violence by parents and teachers, primaryOutcomes measure: Reduction of parents' or teachers' use of emotional and physical violence, secondaryOutcomes measure: Change of parents' and teachers' attitudes towards emotional and physical violence, secondaryOutcomes measure: Improvement of children's mental health, secondaryOutcomes measure: Increase of children's quality of life, secondaryOutcomes measure: Improvement of school climate, otherOutcomes measure: Reduction of children's perceived stress, otherOutcomes measure: Reduction of parents' and teachers' perceived stress, otherOutcomes measure: Improvement of teachers' decision making, otherOutcomes measure: Improvement of teachers' self-efficacy, eligibilityModule sex: ALL, minimumAge: 9 Years, maximumAge: 80 Years, stdAges: CHILD, stdAges: ADULT, stdAges: OLDER_ADULT, contactsLocationsModule locations facility: Daressalaam University College of Education, status: RECRUITING, city: Daressalam, country: Tanzania, contacts name: Mabula Nkuba, Dr., role: CONTACT, contacts name: Eliud Kabelege, role: CONTACT, geoPoint lat: -6.82349, lon: 39.26951, hasResults: False