ABSTRACT

This article examines the content of a web-based repository of published international development impact evaluations created by the International Initiative for Impact Evaluation (3ie) in 2012. In 2015, the authors of this article along with a team of reviewers at 3ie used an updated search and screening protocol to identify new impact evaluation studies published until September 2015. By using systematic search and screening techniques to populate the repository, which contains 4,205 development impact evaluations published between 1981 and September 2015, we can use the data to analyse the trends in impact evaluation research. Though we find early evidence of a plateau in the growth rate of development impact evaluations, the number of studies published between January 2010 and September 2015 account for almost two thirds of the total evidence base. Over half of all studies fall under health and education sectors, though we see in the current decade an emergence of studies in formerly unrepresented sectors. While development impact evaluations are concentrated in Sub-Saharan Africa and Latin America (60%), studies are increasingly conducted in underrepresented regions such as the Middle East and North Africa.

摘要

本文研究由国际影响评估倡议（3ie）于2012年创建的，已发布的国际发展影响评估的基于Web的存储库的内容。2015年，本文的作者以及3ie的审阅者团队使用了更新的搜索和筛选协议，以识别在2015年9月之前发布的新影响评估研究。通过使用系统的搜索和筛选技术来填充知识库，其中包含1981年至2015年9月之间发布的4,205个开发影响评估，我们可以使用这些数据来分析趋势影响评估研究。尽管我们发现了发展影响评估增长率的早期迹象，在2010年1月至2015年9月之间发表的研究数量几乎占全部证据基础的三分之二。所有研究中有一半以上属于卫生和教育部门，尽管我们看到在当前十年中出现了以前没有代表的部门中的研究。虽然发展影响评估集中在撒哈拉以南非洲和拉丁美洲（60％），但在代表性不足的地区（例如中东和北非）进行的研究越来越多。