TY  - RPRT
        AU  - Fertig, Michael
AU  - Wright, Robert E.
        TI  - School Quality, Educational Attainment and Aggregation Bias
        PY  - 2004/Jan/
        PB  - Institute of Labor Economics (IZA)
        CY  - Bonn
        T2  - IZA Discussion Paper
        IS  - 994
        UR  - https://www.iza.org/index.php/publications/dp994
        AB  - Data from 31 countries participating in the Programme for International Student Assessment
(PISA) is used to estimate education production functions for reading literacy. The analysis
suggests that the probability of finding statistically significant and correctly signed class size
effects increases the higher the level of aggregation used to measure class size.

        KW  - class size
KW  - PISA data
KW  - bias
        ER  -