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Latest blogs

Evidence impact: Increasing immunization rates by engaging community leaders

In Nigeria, as in much of the developing world, many children never receive their full set of recommended immunizations. Even among children who receive some vaccinations, not all return for subsequent doses or later shots. In 2019, only 57 percent of infants in Nigeria completed their three-shot course of the DTP (diphtheria, tetanus, pertussis) vaccine.

Evidence Dialogues: Implementation research is key to understanding why nutrition interventions work – or don't

In Thursday's 3ie Evidence Dialogues webinar, nutrition experts shared the reasons implementation research is so important in the field, as well as some examples of key takeaways from already-completed studies.

Evidence impact: Claiming the influence of studies with confidence

In a previous blog, we described our definition of 'evidence impact.' Now, given how messy the decision-making process can be in the real world, how can we be sure that a study and its findings made an impact?

Service d'assistance WACIE: Un nouveau dispositif pour accompagner l’usage des données probantes en Afrique de l'Ouest

Les lacunes dans l'expérience d'évaluation sont criantes dans les pays membres du programme de renforcement des capacités et évaluation d'impact en Afrique de l'Ouest (WACIE), comme en témoigne l'étude exploratoire du programme. En conséquence, l'utilisation des données probantes dans l'élaboration des politiques est limitée. Mais l'obstacle principal à cette utilisation est la capacité, pas l'intérêt. L’étude exploratoire a révélé un intérêt presque universel chez les décideurs politiques et professionnels de l'évaluation pour le l’accompagnement et le renforcement des capacités en la matière.

WACIE Helpdesk: A new source of support for evidence-informed decision-making in West Africa

In the countries where the West Africa Capacity-building and Impact Evaluation (WACIE) program works, the gaps in evaluation experience are stark, as the program's scoping study found. Accordingly, the use of evidence in policymaking is limited. But the barrier is capacity, not interest – the same study found that the desire among policymakers and evaluation professionals for support and capacity building was nearly-universal.

Working side-by-side across the COVID divide

At 3ie, with our biggest offices in India and the United States, we're currently treading on both sides of a stark, life-and-death divide. On our regular video calls, our faces are intermingled on the screen. But right now, when we step away, we walk into different worlds.


Evidence Matters is 3ie’s blog. It primarily features contributions from staff and board members. Guest blogs are by invitation.

3ie publishes blogs in the form received from the authors. Any errors or omissions are the sole responsibility of the authors. Views expressed are their own and do not represent the opinions of 3ie, its board of commissioners or supporters.