Is four less than five? Effects of four-day school weeks on student achievement in Oregon
Is four less than five? Effects of four-day school weeks on student achievement in Oregon
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DOI：
10.1016/j.jpubeco.2020.104308
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发表时间：
2021-01-01
影响因子：
9.8
通讯作者：
Thompson, Paul N.
中科院分区：
文献类型：
--
作者：
Thompson, Paul N.
教育投入质量对成绩的影响已经有了很好的记录，但暴露在学校环境中的数量--以教学时间衡量--也对学生产生了深远的影响。这项研究考察了一项关键的教学时间减少成本节约政策--每周四天学校的成绩影响。使用2005年到2019年俄勒冈州三年级到八年级的考试成绩进行差异分析，我发现在改为每周四天学校后，数学考试成绩下降了0.037到0.059标准差，阅读成绩下降了0.033到0.042标准差。看来，每周三到四个小时的在校时间的减少在很大程度上导致了这些成绩的下降。以每周四天的在校时间为工具，我发现每周在校时间增加一小时会导致数学成绩增加0.018的标准差，阅读成绩增加0.006的标准差。最后，我比较了每周四天制与其他传统成本节约方法的成本节约-成果权衡，发现与许多其他干预措施相比，四天制学校每周产生了类似的成本节约-成果权衡。(C)2020爱思唯尔B.V.保留所有权利。
The achievement impacts of educational input quality have been well documented, but the quantity of exposure to the school environment - as measured by instructional time - also has profound impacts on students. This study examines the achievement impacts of a key instructional time reducing cost savings policy - the four-day school week. Using 3rd through 8th grade test scores from Oregon from 2005 to 2019 in a difference-in-differences analysis, I find that math test scores decrease by between 0.037 and 0.059 standard deviations and reading scores decrease by between 0.033 and 0.042 standard deviations following the switch to the four-day school week. It appears that reductions in time in school, which amount to three to four hours per week, largely drive these achievement declines. Using four-day school week adoption as an instrument for weekly time in school, I find that a one-hour increase in weekly time in school leads to a 0.018 standard deviation increase in math achievement and a 0.006 standard deviation increase in reading achievement. Finally, I compare the cost savings-achievement trade-off of the four-day school week with other traditional cost savings approaches and find that the four-day school week yields a comparable cost savings-achievement trade-off to many of these other interventions. (C) 2020 Elsevier B.V. All rights reserved.