剧情简介：Educational policy-makers around the world constantly make decisions about how to use scarce resources to improve the education of children. Unfortunately, their decisions are rarely informed by evidence on the consequences of these initiatives in other settings. Nor are decisions typically accompanied by well-formulated plans to evaluate their causal impacts. As a result, know...(展开全部)
作者：Richard Murnane
出版社：OUP USA
ISBN：9780199753864
