全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量
80

相关文章

更多...
-  2019 

Rigorous Large

DOI: 10.3102/0013189X19832850

Keywords: educational policy,evaluation,meta-analysis,program evaluation

Full-Text   Cite this paper   Add to My Lib

Abstract:

There are a growing number of large-scale educational randomized controlled trials (RCTs). Considering their expense, it is important to reflect on the effectiveness of this approach. We assessed the magnitude and precision of effects found in those large-scale RCTs commissioned by the UK-based Education Endowment Foundation and the U.S.-based National Center for Educational Evaluation and Regional Assistance, which evaluated interventions aimed at improving academic achievement in K–12 (141 RCTs; 1,222,024 students). The mean effect size was 0.06 standard deviations. These sat within relatively large confidence intervals (mean width = 0.30 SDs), which meant that the results were often uninformative (the median Bayes factor was 0.56). We argue that our field needs, as a priority, to understand why educational RCTs often find small and uninformative effects

Full-Text

  
  
  

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133