3ie Replication Paper 17

Thou shalt be given... but how? A replication study of a randomized experiment on food assistance in northern Ecuador

3ie Replication Paper 17

Stefan K Lhachimi and Till Seuring

Lhachimi and Seuring re-examine the results of a cluster-randomized evaluation carried out by Melissa Hidrobo and colleagues in 2013 in two provinces in northern Ecuador. The original study investigated the effectiveness of three modes of food assistance—cash, food and vouchers—aimed at improving nutritional outcomes. They found that all three modes improved the quantity and quality of food consumption to a similar extent, but with some exceptions. They also carried out a cost-effectiveness analysis, which indicated that direct food provision was the least cost-effective way to improve nutritional outcomes, while cash and vouchers were equally cost-effective.

The replication authors are able to confirm the original results, using both push-button and pure replications. The measurement and estimation analysis investigated potential contamination of post-intervention preferences for treatment modes in regional units where more than one mode was tested. While some differences in preferences were found in units with more than one treatment mode, the evidence is not conclusive. Differential treatment effects between provinces were also investigated and some evidence was found that for some outcomes, intervention effects may vary in magnitude by province. The theory of change analysis investigates the uncertainty around the original cost-effectiveness analysis and suggests that further research could be important to answer the question of whether cash or vouchers are more cost-effective.

3ie Replication paper 18

Savings revisited: a replication study of a savings intervention in Malawi

Replication paper 3ie 2018

Jesper Stage and Tharshini Thangavelu replicate the results of a randomized evaluation carried out by Lasse Brune and colleagues in 2016 in Malawi.

RPS19

Mobile money and its impact on improving living conditions in Niger: a replication study

Replication paper 3ie

Edmundo Beteta and colleagues replicate the results of a randomized evaluation carried out by Aker and colleagues in 2016 in Niger.

RP16

Preventing HIV and HSV-2 through improving knowledge and attitudes: a replication study of a multicomponent intervention in Zimbabwe

Replication paper 3ie 2018
Yu and colleagues conducted a replication study of an influential paper “The Regai Dzive Shiri Project: results of a randomised trial of an HIV prevention intervention for Zimbabwean youth” by Frances Cowan and colleagues.

RP14

When to start ART? A replication study of timing of antiretroviral therapy for HIV-1-associated Tuberculosis

Replication paper 3ie 2018
In this paper, the research team conducted a replication study of Havlir and others’ 2011 study, “Timing of antiretroviral therapy for HIV-1 infection and tuberculosis.”

RP13

Stretching HIV treatment: A replication study of task shifting in South Africa

Replication paper 3ie 2017
Baojiang Chen and Morshed Alam conducted a replication study of Fairall and other’s influential paper, “Task shifting of antiretroviral treatment from doctors to primary-care nurses in South Africa (STRETCH)”.