From The Campbell Collaboration

Evidence Libraries

Posted in: Resources
Below is a list of useful online resources featuring significant databases and libraries of systematic reviews and impact evaluation studies.

A selection of links to relevant free online bibliographic databases will be published shortly.


Systematic Review libraries and databases

3ie Database of Systematic Reviews: This database provides policymakers and practitioners with easy access to systematic reviews that examine evidence on the effects of social and economic development interventions in low- and middle-income countries. It draws together systematic reviews from a range of sources and covers all sectors. The database provides summaries of the findings and methodologies of existing systematic reviews and protocols of ongoing studies. It also offers quality appraisal of the featured systematic reviews.

The Cochrane Library: The Cochrane Library is a collection of six databases that contain different types of high-quality, independent evidence to inform healthcare decision-making, including the Cochrane Database of Systematic Reviews (a leading resource for systematic reviews in health care).

SUPPRORT summaries of systematic reviews in maternal and child health

Prospero registry of reviews in health and social care

3ie Systematic Reviews

EPPI-Centre Library of international development studies


Databases of primary impact evaluation studies

The following list of impact evaluation databases was compiled by William Savedoff and Ted Collins at the Centre for Global Development. For more information, visit their blog post on the subject here.

3ie database of Impact Evaluations: This database covers impact evaluations conducted in low- and middle- income countries. It summarizes study findings and methodologies for both researchers, and program managers or policy makers, who need evidence on what works, in designing and implementing impact evaluations. The database includes studies that quantify impact using a counterfactual – implicitly or explicitly – with a focus on final welfare outcomes, using qualitative, quantitative or mixed methods.This is a work in progress.The database currently features over 350 records.

World Bank: Development Impact Evaluation Initiative (DIME)

World Bank: Poverty Impact Evaluations Database

World Bank: Independent Evaluation Group's Impact Evaluations

Abdul Latif Jameel Poverty Action Lab: Evaluations

Innovations for Poverty Action (IPA): Search Projects

University of California Center for Effective Global Action (CEGA): Research Projects

Asian Development Bank: Independent Evaluation's Evaluation Resources

Inter-American Development Bank: Office of Evaluation and Oversight

USAID: Development Experience Clearinghouse