Optimising engagement in a digital parenting intervention to prevent violence against adolescents in Tanzania: protocol for a cluster randomised factorial trial.

BACKGROUND: Violence against adolescents is a universal reality, with severe individual and societal costs. There is a critical need for scalable and effective violence prevention strategies such as parenting programmes, particularly in low- and middle-income countries where rates of maltreatment are highest. Digital interventions may be a scalable and cost-effective alternative to in-person delivery, yet maximising caregiver engagement is a substantial challenge. This trial employs a cluster randomised factorial experiment and a novel mixed-methods analytic approach to assess the effectiveness, cost-effectiveness, and feasibility of intervention components designed to optimise engagement in an open-source parenting app, ParentApp for Teens. The app is based on the evidence-based Parenting for Lifelong Health for Teens programme, developed collaboratively by academic institutions in the Global South and North, the WHO, and UNICEF. METHODS/DESIGN: Sixteen neighbourhoods, i.e., clusters, will be randomised to one of eight experimental conditions which consist of any combination of three components (Support: self-guided/moderated WhatsApp groups; App Design: sequential workshops/non-sequential modules; Digital Literacy Training: on/off). The study will be conducted in low-income communities in Tanzania, targeting socioeconomically vulnerable caregivers of adolescents aged 10 to 17 years (16 clusters, 8 conditions, 640 caregivers, 80 per condition). The primary objective of this trial is to estimate the main effects of the three components on engagement. Secondary objectives are to explore the interactions between components, the effects of the components on caregiver behavioural outcomes, moderators and mediators of programme engagement and impact, and the cost-effectiveness of components. The study will also assess enablers and barriers to engagement qualitatively via interviews with a subset of low, medium, and high engaging participants. We will combine quantitative and qualitative data to develop an optimised ParentApp for Teens delivery package. DISCUSSION: This is the first known cluster randomised factorial trial for the optimisation of engagement in a digital parenting intervention in a low- and middle-income country. Findings will be used to inform the evaluation of the optimised app in a subsequent randomised controlled trial. TRIAL REGISTRATION: Pan African Clinical Trial Registry, PACTR202210657553944. Registered 11 October 2022, https://pactr.samrc.ac.za/TrialDisplay.aspx?TrialID=24051 .

A mixed methods evaluation of the large-scale implementation of a school- and community-based parenting program to reduce violence against children in Tanzania: a study protocol.

BACKGROUND: Despite the rapid dissemination of parenting programs aiming to reduce and prevent violence against children (VAC) worldwide, there is limited knowledge about and evidence of the implementation of these programs at scale. This study addresses this gap by assessing the quality of delivery and impact of an evidence-based parenting program for parents/caregivers and their adolescent girls aged 9 to 14-Parenting for Lifelong Health Teens (PLH-Teens), known locally as Furaha Teens-on reducing VAC at scale in Tanzania. The study will explore participating family and staff perspectives on program implementation and examine factors associated with implementation and how implementation quality is associated with intervention outcomes when the program is delivered to approximately 50,000 parent-child dyads (N = 100,000) in schools and community centers across eight districts of Tanzania. METHODS: This mixed-methods study will answer the following research questions: (1) what is the implementation quality and fidelity of PLH-Teens at scale in Tanzania; (2) what factors are associated with the quality of delivery and implementation fidelity of PLH-Teens; (3) how are implementation quality and fidelity associated with intervention outcomes; (4) what are participant and implementing staff perspectives on the acceptability, appropriateness, feasibility, benefits, and challenges of delivering PLH-Teens in their schools and communities; (5) what is the impact of PLH-Teens on VAC and participant well-being; and (6) how much does it cost to deliver PLH-Teens at scale? Qualitative and quantitative data will be collected directly from implementers, parents/caregivers, and adolescents using pre-post questionnaires, observational assessments, cost surveys, focus groups, and interviews. Qualitative data will be analyzed thematically with the aid of NVIVO software. Quantitative data will be cleaned and analyzed using methods such as correlation, regression, and structural equation models using Stata and R. COREQ and TREND guidelines will be used, where appropriate. DISCUSSION: Findings will provide vital insights into some of the factors related to quality implementation at scale. Lessons learned regarding the implementation of PLH-Teens at scale will be applied in Tanzania, and also in the delivery of PLH parenting programs globally.