More than 15 years after the passage of No Child Left Behind, billions of dollars have been spent on school-turnaround policies and initiatives. Yet, this growing “school improvement industry” has received surprisingly little consideration. This study is an initial effort to begin to better understand this industry’s supply side. We use qualitative research techniques to analyze the websites of 151 school-turnaround providers that have been endorsed, either directly or indirectly, by 13 state education agencies with publicly available lists of providers. In addition, we conduct a systematic review of the research evidence behind each provider, finding that the types of providers and the services that they purport offering vary considerably. Approximately 50% of providers indicate being research based, but 11% have evidence of impact on student achievement outcomes generally, and only 5% in turnaround contexts specifically. We consider several tensions in policy and practice that arise from this research.

中文翻译：

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教育服务提供者多，证据少

在《不让一个孩子掉队》通过后 15 年多，数十亿美元已用于学校转型政策和举措。然而，这个不断增长的“学校改善行业”却出人意料地很少受到关注。这项研究是开始更好地了解该行业的供应方的初步努力。我们使用定性研究技术来分析 151 家学校转型提供者的网站，这些提供者的网站得到了 13 个州教育机构的直接或间接认可，并提供了公开的提供者名单。此外，我们对每个提供商背后的研究证据进行了系统审查，发现提供商的类型和他们声称提供的服务差异很大。大约 50% 的提供者表示以研究为基础，但 11% 的人有证据表明总体上对学生的成绩有影响，特别是在周转环境中只有 5%。我们考虑了这项研究中产生的政策和实践中的一些紧张局势。