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School Year Length and Student Performance: Quasi-Experimental Evidence

Benjamin Hansen

University of Oregon - Department of Economics; NBER; IZA

October 20, 2011

This paper investigates the impact of instructional days on student performance. Because school year length is endogenously determined, I estimate the causal impact of school year length through two quasi-experiments that exploit different sources of variation in instructional days. The fi…rst approach identifies school year length’'s effect through weather-related cancellations in Colorado and Maryland. Weather-related cancellations are made up at the end of school years, allowing relatively large ‡fluctuations in instructional days within school districts prior to test administration. Because school cancellations are not recorded for past school years, this data limitation is overcome by using two-sample indirect least squares. The second identi…fication strategy takes advantage of state-mandated changes in test-date administration in Minnesota, which moved 5 times in 5 years. The results are similar for either source of instructional day variation: more instructional time prior to test administration increases student performance. The effects are consistent across various thresholds of performance and grade levels.

Number of Pages in PDF File: 38

Keywords: School Year Length, School Quality, Student Performance, Natural Experiment, Quasi-Experiment

JEL Classification: I20, I28, J08

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Date posted: May 26, 2013  

Suggested Citation

Hansen, Benjamin, School Year Length and Student Performance: Quasi-Experimental Evidence (October 20, 2011). Available at SSRN: https://ssrn.com/abstract=2269846 or http://dx.doi.org/10.2139/ssrn.2269846

Contact Information

Benjamin Hansen (Contact Author)
University of Oregon - Department of Economics ( email )
1285 University of ORegon
Eugene, OR 97403
United States
NBER ( email )
1050 Massachusetts Avenue
Cambridge, MA 02138
United States
IZA ( email )
P.O. Box 7240
Bonn, D-53072

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References:  14
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