Economics summarize the paper<\/p>\n
Impact evaluations can help to inform policy, but they are rooted in
\nparticular contexts and to what extent they generalize is an open and
\nimportant question. We discuss alternative measures of heterogeneity
\nof impact evaluation results and relate them to generalizability, or how
\nmuch we can extrapolate from a set of studies to another setting. We
\nthen exploit a new data set of results on a wide variety of interventions
\nto provide some typical values and discuss their interpretation.<\/p>\n
1
\n1 Introduction
\nRecent years have seen extraordinary growth in the use of rigorous impact evaluations
\nin the social sciences, particularly in international development. This expansion
\nof evidence is welcome. However, if this evidence is to be useful in informing policy,
\nwe must also know to what extent the results from impact evaluations generalize to
\nnew contexts. Concerns about external validity have stimulated lively theoretical debates
\nin economics (Deaton, 2010; Pritchett and Sandefur, 2013). Further, examples
\nof studies which raised questions about the external validity of initial findings have
\nbegun to trickle in (Bold et al., 2010; Allcott, 2015)<\/p>\n","protected":false},"excerpt":{"rendered":"
Economics summarize the paper Impact evaluations can help to inform policy, but they are rooted in particular contexts and to what extent they generalize is an open and important question. We discuss alternative measures of heterogeneity of impact evaluation results Read More …<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-426277","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/www.benedictsol.com\/blogs\/wp-json\/wp\/v2\/posts\/426277","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.benedictsol.com\/blogs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.benedictsol.com\/blogs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.benedictsol.com\/blogs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.benedictsol.com\/blogs\/wp-json\/wp\/v2\/comments?post=426277"}],"version-history":[{"count":0,"href":"https:\/\/www.benedictsol.com\/blogs\/wp-json\/wp\/v2\/posts\/426277\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.benedictsol.com\/blogs\/wp-json\/wp\/v2\/media?parent=426277"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.benedictsol.com\/blogs\/wp-json\/wp\/v2\/categories?post=426277"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.benedictsol.com\/blogs\/wp-json\/wp\/v2\/tags?post=426277"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}