<p>The Registry of Efficacy and Effectiveness Studies (REES) is a database of causal inference studies in education and related fields.</p>
<p>REES is designed to increase transparency of and access to information about both ongoing and completed efficacy and effectiveness studies.</p>
<p>REES accommodates a range of study designs, including randomized trials, quasi-experimental designs, regression discontinuity designs, and single case designs. The database is searchable and exportable.</p>


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<h2><em>Increasing Transparency and Access in Education and the Social Sciences</em></h2>


The Registry of Efficacy and Effectiveness Studies (REES) is a database of causal inference studies in education and related social science fields. REES is designed to increase the transparency of and access to information about impact studies.