Because many school funding studies are seriously flawed, valid conclusions cannot be reached concerning the effects of school funding in the United States. New evidence from the National Assessment of Educational Progress and two international achievement tests shows that differences among U.S. public school districts (and states) in funding and…

The purpose of this study was to improve both statistical and judgmental methods for detecting potentially biased test items in an attempt to examine the agreement between the results obtained with these methods. If greater agreement between methods can be achieved, test items can be more effectively screened using judgmental methods prior to…

The New York State Experimental Prekindergarten Program (PreK) evaluation studied successive waves of children while they were in PreK, and as they progressed through the third grade. For each wave, two control groups were obtained: (1) A waiting-list control group, children in districts offering PreK programs who were identified as eligible for…