TY - JOUR AU - Loeb,Susanna AU - Bound,John TI - The Effect of Measured School Inputs on Academic Achievement: Evidence from the 1920s, 1930s and 1940s Birth Cohorts JF - National Bureau of Economic Research Working Paper Series VL - No. 5331 PY - 1995 Y2 - November 1995 UR - http://www.nber.org/papers/w5331 L1 - http://www.nber.org/papers/w5331.pdf N1 - Author contact info: Susanna Loeb 524 CERAS, 520 Galvez Mall Stanford University Stanford, CA 94305 Tel: 650/725-4262 E-Mail: sloeb@stanford.edu John Bound Department of Economics University of Michigan Ann Arbor, MI 48109-1220 Tel: 734/998-7149 Fax: 734/998-7415 E-Mail: jbound@umich.edu AB - The study presented here uses data from the NORC General Social Surveys to explore the effects of measurable school characteristics on student achievement. What separates this study from many others is the use of aggregate data on older cohorts, usually associated with research on the influence of school inputs on earnings. Earnings studies have tended to find substantial effects, while much of the research on achievement using contemporary, cross-sectional data has not. We find substantively large effects, similar in size to those found in many earnings-focused studies. In this way, our results point to the importance of aggregation and cohort effects in modeling the relationship between school inputs and student outcomes. The level of data aggregation, in particular, appears important, bringing into question causal interpretations of the results of studies using aggregate data to assess school input effects. ER -