The authors argue that personnel who select standardized achievement tests have been led to believe that the major achievement test batteries differ very little in terms of the topics they test; but that the content covered by these major tests is different, and that such differences have consequences for instructional content. To test this…

Factor analysis was used to summarize the interrelationships between a large and varied collection of measures. Data for 500 third grade students assigned to either an experimental or a comparison condition were obtained. The data covered scores for the first 28 items of the Student Affective Behavior Checklist, (2) 9 nonmathematics subtests of…