Our projects

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Field experiments

Randomised evaluations of interventions delivered at scale.

Cash or Care? Completed
Pregnancy to age two

A cluster-randomised trial testing three approaches to supporting families from pregnancy until the child turns two: a parenting programme delivered by community health workers using a digital app, an unconditional cash transfer, and the two combined — alongside a control group.

Design
Cluster RCT, 4 arms
Sample
3,585 households
Location
Dodoma region, 387 communities
Years
Oct 2022 — Feb 2025
Information and peer support for infant nutrition in Mainland Tanzania Planned

Details to follow as the study is still being designed.

Lab-in-the-field experiment

Measuring preferences, constraints and decision-making.

Father engagement and support to mothers: the policy elasticity of child-related spending Completed

A lab-in-the-field allocation experiment where parents divide an endowment between themselves, their spouse, and their child, used to study how support to parents affects intra-household decisions about spending on children.

Design
Lab-in-the-field, embedded in an RCT
Sample
1,330 parents of children under 2
Location
Dodoma region
Years
2024

Longitudinal studies

Following the same children and households over time.

Nationally representative longitudinal study Planned

A planned study following a nationally representative new cohort of children from pregnancy over time to better understand early child development in a low resource setting.

Implementation science

Studies on the delivery, cost and sustainability of early childhood interventions.

Implementation and sustainability of the Kizazi Kijacho trial parenting intervention Complete

Mixed-method research combining a process evaluation (forthcoming), an endline evaluation, and a sustainability/scale-up study conducted 9–12 months after programme support ended. Evaluates what worked well and less well in terms of intervention delivery in practice, how (and why) the interventions changed caregiving practice, and what helped or hindered community health workers' delivery.

Design
Mixed-method
Sample
Quantitative data from 1,491 families participating in a Kizazi Kijacho parenting intervention, plus qualitative interviews and focus group discussions with a smaller sub-set of key stakeholders
Location
Dodoma region
Years
2022 — 2026
Costing parenting and cash transfer interventions in an early childhood development pilot programme in Tanzania Complete

A costing study estimating the resources required to deliver the parenting and cash-transfer interventions under the Kizazi Kijacho NGO-supported delivery model, examining the main cost drivers, how the cost burden is distributed among funding sources, and the incremental cost compared to existing services — to help inform decisions about future scale-up.

Design
Costing study, societal perspective
Sample
All Phase 1 Kizazi Kijacho intervention arms
Location
Dodoma region
Years
2021 — 2024