A study involving 105 sixth-graders examined three aspects of technical adequacy with respect to two general outcome measures in mathematics: the effects of aggregating scores and correcting for random guessing on reliability and validity and the extent to which the measures were sensitive to changes in performance. (Contains references.)…

Census data were used to predict average district scores on standardized achievement tests for grades one, two, three, six, and twelve, in 716 California school districts. The following census variables were used: education, income, college, poverty (families); poverty (children); professional occupations; housing; Spanish surnames; and Black.…