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Notes on Trends in the U.S. Income-Achievement Gap

Eric A. Hanushek, Jacob Light, Paul E. Peterson, Laura M. Talpey, Ludger Woessmann
Published Date: 
June 2022

Reardon (2011b) reports rapidly growing SES gaps when SES is measured by current parental income indicators. This differs dramatically from our analysis of trends in the SES-achievement gap (Hanushek et al. (2022)). We reconcile our findings with his by showing that the difference in results is due to systematic measurement errors in his analysis. When a trend line is estimated from the studies in his analysis less prone to measurement error, no upward trend in the SES-achievement gap is detected.