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Direct linkCasabianca, Jodi M.; Lewis, Charles – Journal of Educational and Behavioral Statistics, 2018
The null hypothesis test used in differential item functioning (DIF) detection tests for a subgroup difference in item-level performance--if the null hypothesis of "no DIF" is rejected, the item is flagged for DIF. Conversely, an item is kept in the test form if there is insufficient evidence of DIF. We present frequentist and empirical…
Descriptors: Test Bias, Hypothesis Testing, Bayesian Statistics, Statistical Analysis
Download full textEdgerton, Jason D.; Peter, Tracey; Roberts, Lance W. – Canadian Journal of Education, 2008
This study reassessed the extent to which socio-economic background, gender, and region endure as sources of educational inequality in Canada. The analysis utilized the 28,000 student Canadian sample from the data set of the OECD's 2003 "Programme for International Student Assessment (PISA)". Results, consistent with previous findings,…
Descriptors: Equal Education, Educational Objectives, Foreign Countries, Academic Achievement
