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    • Evidence mapping
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    3ie invented evidence gap maps to improve decision-making around where to make investments in producing more evidence or synthesising existing evidence. Since then, we have pioneered further advancements, including developing our interactive online map platform and innovating evidence mapping to broaden its use in development decision-making.

    3ie funds and quality assures formative and impact evaluations of development programmes in low- and middle-income countries. These evaluations provide crucial evidence on what works, for whom, why and at what cost. On our website, we host the largest-of-its-kind impact evaluation repository that includes summaries of both 3ie-funded and other studies.

    We are global leaders in producing and assuring the quality of theory-based systematic reviews of the effectiveness of development interventions. 3ie continues to innovate and improve synthesis and systematic review methodologies and the uptake and use of synthesised evidence.

    3ie specialises in increasing access to, demand for and use of evidence by governments, parliaments, programme managers, civil society, programme participants and the media. We do this by emphasising the value of planning and engaging with stakeholders to ensure that evaluations and reviews are relevant and useful. We use robust and effective monitoring to measure evidence use so that we can convey evidence impact on programmes and policies with greater confidence.

    We set up our replication programme to address the need for a freely available global public good that helps improve the quality and reliability of impact evaluation evidence used for development decision-making. Replication is the most established method of research validation in science, yet it has not been fully embraced by the research community or development donors, leading to this gap.

    3ie’s evidence programmes and services help build technical capacity to commission and conduct rigorous evaluations, produce evidence gap maps, conduct evidence synthesis and use evidence. We also work with L&MIC governments to build effective monitoring and evaluation systems. 3ie’s bursary programme supports L&MIC policymakers, programme managers and researchers to participate in specialised training and international events.

    3ie has always been strongly committed to research transparency and open access to data. We are proud to be a leader in the growing movement to improve global standards for research transparency.

    On request, 3ie provides services to partners for supporting the generation and use of evidence to inform their development policies and programmes. We commission and quality assure evidence gap maps, evaluations and syntheses as well as provide training.

    3ie plays a unique role in promoting collaboration among researchers, policymakers and development programme managers at country, regional and global levels. Our global advocacy for evidence-informed action helps ensure decision makers have quality evidence about what works when they need it.

  • Evidence hub
    • 3ie Development Evidence Portal
    • Evidence gap maps
    • Replication studies
    • Publications
    • RIDIE

    Searching this database will bring up published impact evaluations from our Impact Evaluation Repository as well as completed 3ie-funded impact evaluations.

    These provide a visual display of completed and ongoing systematic reviews and impact evaluations in a sector or sub-sector, structured around a framework of interventions and outcomes.

    We provide funding for replications, conduct in-house replication research and publish guidance on replication methodology. We also provide funding to original authors of 3ie-funded for preparing their raw datasets.

    As part of our mandate as a knowledge producer and translator for our main audiences, we publish a range of knowledge products. These include briefs, impact evaluation reports, systematic review reports and summaries, replication papers, evidence gap map reports, scoping reports and working papers.

    3ie’s Registry for International Development Impact Evaluations (RIDIE) aims to enhance the transparency and quality of impact evaluation research before it begins.

  • Our work
      • Agriculture
      • Education
      • Environment
      • Governance
      • Health
      • Humanitarian
      • Infrastructure
      • Livelihoods
      • Public finance
      • Social protection
      • Water, sanitation and hygiene
      • Innovations in data for impact evaluation
    • Working with governments
      • Philippines
      • Uganda
      • West Africa Capacity-buidling and Impact Evaluation
      • Strengthening the use of evidence for development impact
    • Replication
      • Replication Programme on Financial Services for the Poor
      • Replication programme on HIV prevention

    3ie’s evidence programmes support studies to fill critical knowledge gaps in a sector, sub-sector or in an area with limited rigorous evidence. We fund studies under a specific theme or which address a particular question or set of questions in programme areas where our donors want to expand global public knowledge of what works and what does not.

    To help address gaps in the understanding of what works and what does not, we fund a variety of studies across this programme area, including interventions focused on insurance, extension, land-use and forestry, and innovation and technology.

    3ie supports impact evaluations, systematic reviews and evidence gap maps on education effectiveness that help answer the questions of what works, for whom, why and at what cost.

    We fund the production of rigorous evidence on biodiversity and forest conservation programmes, environmental regulations, impact of sustainable fuels, climate change mitigation and adaptation.

    3ie is supporting the generation of evidence in areas such as transparency and accountability in natural resource governance. We also fund the production of rigorous evidence on interventions to curb corruption, judicial and civil service reforms, land reforms, public financial management, conflict prevention and peacebuilding, decentralised governance and public service delivery.

    We fund the production of rigorous evidence on interventions on HIV and AIDS, immunisation maternal and child health, nutrition and sexual and reproductive health through a number of evidence programmes. Evidence products from these programmes include replication studies, evidence gap maps, systematic reviews and impact evaluations.

    We are supporting the generation of rigorous evidence in humanitarian contexts on interventions related to water, sanitation and hygiene, food security, multi-sectoral humanitarian programming and interventions targeting malnutrition.

    We fund the production of rigorous evidence on the socio-economic and environmental impacts of public transportation by rail, bus and rapid transit systems, and essential services such as electricity and gas to expand access, foster inclusive growth, and combat climate change through sustainable systems.

    3ie, in collaboration with India’s rural development ministry is working to generate rigorous evidence on the impact of the National Rural Livelihoods Mission.

    We support policy-relevant studies that contribute to improving our understanding of public expenditure trends and improving the delivery of public goods.

    We support impact evaluations to build the evidence base on the effectiveness of interventions that reduce the risks faced by the poor through participation in public works and employment programmes.

    3ie’s has two major evidence programmes that support the generation and use of high-quality evidence for informing decision-making in the water, sanitation and hygiene sector

    In alignment with our mission, 3ie promotes rigorous, efficient, and ethical use of innovative data sources for impact evaluations, including in those conducted by 3ie, by 3ie research partners, and in the global development community more broadly.

    .

    We work with various departments in the Philippines government to develop and fund rigorous evidence useful for policymakers. We also support capacity-building activities for Philippine researchers and support the impact evaluation management framework of the National Economic and Development Authority.

    Working in collaboration with the Office of the Prime Minister, the primary aim is to improve developmental outcomes through evidence-informed decision making in Uganda. 3ie is currently supporting evaluation of government programmes around youth livelihood, family planning, public service delivery and local governance, and universal primary education.

    3ie and the government of Benin are working on a a multi-year regional initiative that aims to promote the institutionalization of evaluation in government systems across eight countries in West Africa, including: Benin, Burkina Faso, Côte d’Ivoire, Guinea-Bissau, Mali, Niger, Senegal and Togo.
     

    This is a five-year programme (2019-23) that is working on increasing the use of evidence by policymakers in Ghana, Pakistan and Uganda. In partnership with country governments, this programme aims to develop capacity and promote innovation in increasing evidence-informed decision-making. SEDI is funded by the UK Foreign, Commonwealth and Development Office.

    .

    3ie funds internal replications of influential or innovative impact evaluations of financial interventions on mobile money, cash transfers, bank deposits, and other financial service interventions targeted towards underserved and unbanked populations in developing countries.

    3ie funds internal replications of influential or innovative impact evaluations of biomedical, behavioural, social, and structural HIV prevention and treatment interventions to improve the evidence base in low- and middle-income countries.

  • Funding
    • Open opportunities

    View our current funding opportunities for evaluations, systematic reviews and internal replication studies.

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  • Our expertise
    • Evidence mapping
    • Impact evaluation
    • Synthesis
    • Evidence impact
    • Replication
    • Capacity development
    • Research transparency
    • Services
    • Advocacy

    3ie invented evidence gap maps to improve decision-making around where to make investments in producing more evidence or synthesising existing evidence. Since then, we have pioneered further advancements, including developing our interactive online map platform and innovating evidence mapping to broaden its use in development decision-making.

    3ie funds and quality assures formative and impact evaluations of development programmes in low- and middle-income countries. These evaluations provide crucial evidence on what works, for whom, why and at what cost. On our website, we host the largest-of-its-kind impact evaluation repository that includes summaries of both 3ie-funded and other studies.

    We are global leaders in producing and assuring the quality of theory-based systematic reviews of the effectiveness of development interventions. 3ie continues to innovate and improve synthesis and systematic review methodologies and the uptake and use of synthesised evidence.

    3ie specialises in increasing access to, demand for and use of evidence by governments, parliaments, programme managers, civil society, programme participants and the media. We do this by emphasising the value of planning and engaging with stakeholders to ensure that evaluations and reviews are relevant and useful. We use robust and effective monitoring to measure evidence use so that we can convey evidence impact on programmes and policies with greater confidence.

    We set up our replication programme to address the need for a freely available global public good that helps improve the quality and reliability of impact evaluation evidence used for development decision-making. Replication is the most established method of research validation in science, yet it has not been fully embraced by the research community or development donors, leading to this gap.

    3ie’s evidence programmes and services help build technical capacity to commission and conduct rigorous evaluations, produce evidence gap maps, conduct evidence synthesis and use evidence. We also work with L&MIC governments to build effective monitoring and evaluation systems. 3ie’s bursary programme supports L&MIC policymakers, programme managers and researchers to participate in specialised training and international events.

    3ie has always been strongly committed to research transparency and open access to data. We are proud to be a leader in the growing movement to improve global standards for research transparency.

    On request, 3ie provides services to partners for supporting the generation and use of evidence to inform their development policies and programmes. We commission and quality assure evidence gap maps, evaluations and syntheses as well as provide training.

    3ie plays a unique role in promoting collaboration among researchers, policymakers and development programme managers at country, regional and global levels. Our global advocacy for evidence-informed action helps ensure decision makers have quality evidence about what works when they need it.

  • Evidence hub
    • 3ie Development Evidence Portal
    • Evidence gap maps
    • Replication studies
    • Publications
    • RIDIE

    Searching this database will bring up published impact evaluations from our Impact Evaluation Repository as well as completed 3ie-funded impact evaluations.

    These provide a visual display of completed and ongoing systematic reviews and impact evaluations in a sector or sub-sector, structured around a framework of interventions and outcomes.

    We provide funding for replications, conduct in-house replication research and publish guidance on replication methodology. We also provide funding to original authors of 3ie-funded for preparing their raw datasets.

    As part of our mandate as a knowledge producer and translator for our main audiences, we publish a range of knowledge products. These include briefs, impact evaluation reports, systematic review reports and summaries, replication papers, evidence gap map reports, scoping reports and working papers.

    3ie’s Registry for International Development Impact Evaluations (RIDIE) aims to enhance the transparency and quality of impact evaluation research before it begins.

  • Our work
      • Agriculture
      • Education
      • Environment
      • Governance
      • Health
      • Humanitarian
      • Infrastructure
      • Livelihoods
      • Public finance
      • Social protection
      • Water, sanitation and hygiene
      • Innovations in data for impact evaluation
    • Working with governments
      • Philippines
      • Uganda
      • West Africa Capacity-buidling and Impact Evaluation
      • Strengthening the use of evidence for development impact
    • Replication
      • Replication Programme on Financial Services for the Poor
      • Replication programme on HIV prevention

    3ie’s evidence programmes support studies to fill critical knowledge gaps in a sector, sub-sector or in an area with limited rigorous evidence. We fund studies under a specific theme or which address a particular question or set of questions in programme areas where our donors want to expand global public knowledge of what works and what does not.

    To help address gaps in the understanding of what works and what does not, we fund a variety of studies across this programme area, including interventions focused on insurance, extension, land-use and forestry, and innovation and technology.

    3ie supports impact evaluations, systematic reviews and evidence gap maps on education effectiveness that help answer the questions of what works, for whom, why and at what cost.

    We fund the production of rigorous evidence on biodiversity and forest conservation programmes, environmental regulations, impact of sustainable fuels, climate change mitigation and adaptation.

    3ie is supporting the generation of evidence in areas such as transparency and accountability in natural resource governance. We also fund the production of rigorous evidence on interventions to curb corruption, judicial and civil service reforms, land reforms, public financial management, conflict prevention and peacebuilding, decentralised governance and public service delivery.

    We fund the production of rigorous evidence on interventions on HIV and AIDS, immunisation maternal and child health, nutrition and sexual and reproductive health through a number of evidence programmes. Evidence products from these programmes include replication studies, evidence gap maps, systematic reviews and impact evaluations.

    We are supporting the generation of rigorous evidence in humanitarian contexts on interventions related to water, sanitation and hygiene, food security, multi-sectoral humanitarian programming and interventions targeting malnutrition.

    We fund the production of rigorous evidence on the socio-economic and environmental impacts of public transportation by rail, bus and rapid transit systems, and essential services such as electricity and gas to expand access, foster inclusive growth, and combat climate change through sustainable systems.

    3ie, in collaboration with India’s rural development ministry is working to generate rigorous evidence on the impact of the National Rural Livelihoods Mission.

    We support policy-relevant studies that contribute to improving our understanding of public expenditure trends and improving the delivery of public goods.

    We support impact evaluations to build the evidence base on the effectiveness of interventions that reduce the risks faced by the poor through participation in public works and employment programmes.

    3ie’s has two major evidence programmes that support the generation and use of high-quality evidence for informing decision-making in the water, sanitation and hygiene sector

    In alignment with our mission, 3ie promotes rigorous, efficient, and ethical use of innovative data sources for impact evaluations, including in those conducted by 3ie, by 3ie research partners, and in the global development community more broadly.

    .

    We work with various departments in the Philippines government to develop and fund rigorous evidence useful for policymakers. We also support capacity-building activities for Philippine researchers and support the impact evaluation management framework of the National Economic and Development Authority.

    Working in collaboration with the Office of the Prime Minister, the primary aim is to improve developmental outcomes through evidence-informed decision making in Uganda. 3ie is currently supporting evaluation of government programmes around youth livelihood, family planning, public service delivery and local governance, and universal primary education.

    3ie and the government of Benin are working on a a multi-year regional initiative that aims to promote the institutionalization of evaluation in government systems across eight countries in West Africa, including: Benin, Burkina Faso, Côte d’Ivoire, Guinea-Bissau, Mali, Niger, Senegal and Togo.
     

    This is a five-year programme (2019-23) that is working on increasing the use of evidence by policymakers in Ghana, Pakistan and Uganda. In partnership with country governments, this programme aims to develop capacity and promote innovation in increasing evidence-informed decision-making. SEDI is funded by the UK Foreign, Commonwealth and Development Office.

    .

    3ie funds internal replications of influential or innovative impact evaluations of financial interventions on mobile money, cash transfers, bank deposits, and other financial service interventions targeted towards underserved and unbanked populations in developing countries.

    3ie funds internal replications of influential or innovative impact evaluations of biomedical, behavioural, social, and structural HIV prevention and treatment interventions to improve the evidence base in low- and middle-income countries.

  • Funding
    • Open opportunities

    View our current funding opportunities for evaluations, systematic reviews and internal replication studies.

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RP14

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

3ie Replication paper 14

Eric W. Djimeu

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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.” The original study tackled the issue of optimal timing for ART initiation in HIV-TB co-infected patients by conducting a large multisite trial in 26 countries to determine the impact of earlier ART (within 2 weeks of the initiation of treatment for tuberculosis) on new AIDS-defining illness and death. The original authors find that earlier ART initiation reduces the rate of new AIDS-defining illness and death only for HIV positive TB patients with a CD4 count lower than 50.

In this replication study, the researcher team conducted a pure replication and measurement and estimation analyses. In general, the pure replication confirmed the main findings of the original paper. In addition, the research team found that earlier ART initiation is associated with a sharp increase in the incidence of TB-associated immune reconstitution inflammatory syndrome (IRIS). Furthermore, using mainly econometric approaches to increase the statistical power of the study and to estimate the treatment effect on patients who actually received earlier ART. The research team find that earlier ART initiation do not reduce the rate of new AIDS-defining illness and death even for HIV-positive TB patients with CD4 counts lower than 50.

Overall, the results of this replication do not provide strong support that earlier ART initiation reduces the rate of new AIDS-defining illness and death only for HIV-positive TB patients with CD4 counts lower than 50.

Treatment as prevention: a replication study on early antiretroviral therapy initiation and HIV-1 transmission

Treatment as prevention: a replication study on early antiretroviral therapy initiation and HIV-1 transmission

Replication paper 3ie 2020
 
Eric Djimeu and Eleanor G Dickens conduct a replication of the HPTN 052 study by Cohen and colleagues that evaluates the impact of early initiation of antiretroviral therapy on rates of sexual transmission of HIV-1.

Biometric Smartcards and payment disbursement: a replication study of a state capacity-building experiment in India

Biometric Smartcards and payment disbursement: a replication study of a state capacity-building experiment in India

Replication paper 3ie 2019
 
The National Rural Employment Guarantee Scheme and Social Security Pension are two of the largest employment programmes in Andhra Pradesh. Muralidharan and colleagues (2016) investigated the impacts of biometrically-authenticated payment infrastructure (Smartcards) on beneficiaries of the two employment programmes.

RPS22

Risk sharing and transaction costs: a replication study of evidence from Kenya’s mobile money revolution

Replication paper 3ie 2019
 
This replication study starts with the twin strategies of push-button and pure replications of the original study. It then followed this up with various consistency and robustness checks, such as propensity score matching and the Tobit model specification.

Cash and change: a replication study of a cash transfer experiment in Malawi

Cash and change: a replication study of a cash transfer experiment in Malawi

Replication paper 3ie 2019
 
Maira Reimão conducted a replication of a 2011 study, Cash or condition? Evidence from a cash transfer experiment, by Baird and colleagues, which is one of the few studies that empirically compares the impact of unconditional cash transfers to that of conditional cash transfers.

Impact of unconditional cash transfers: a replication study of the short-term effects in Kenya

Impact of unconditional cash transfers: a replication study of the short-term effects in Kenya

Replication paper 3ie 2019
 

Wang and colleagues replicate the results of a randomized evaluation carried out by Haushofer and Shapiro in 2016.

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Our expertise

  • Evidence mapping
  • Impact evaluation
  • Synthesis
  • Evidence impact
  • Replication
  • Capacity development
  • Research transparency
  • Services
  • Advocacy

Evidence hub

  • 3ie Development Evidence Portal
  • Evidence gap maps
  • Replication studies
  • Publications
  • RIDIE

Our work

  • Agriculture
  • Education
  • Environment
  • Governance
  • Health
  • Humanitarian
  • Infrastructure
  • Livelihoods
  • Public finance
  • Social protection
  • Water, sanitation and hygiene
  • Innovations in data for impact evaluation
  • Philippines
  • Uganda
  • West Africa Capacity-building and Impact Evaluation
  • Strengthening the use of evidence for development impact
  • Replication Programme on Financial services for the poor
  • Replication Programme on HIV Prevention

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  • Open opportunities
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