This study focused on two questions: (1) whether the types of study-aid test, or the levels of test anxiety would affect the level of performance on the test under non-anxious conditions; and (2) whether there would be any interaction effect between the types of study-aid test and the levels of anxiety under non-anxious conditions. Twelve female…

A study was conducted to determine if the observed changes in Head Start children were related to the practice effects inherent in a test-retest situation. The "control" group consisted of 64 children who had been eligible for a Head Start program. They roughly matched a group of Head Start (HS) children in IQ scores, age, and…

A computer simulation procedure was developed to reproduce the overall pattern of results obtained in the Educational Testing Service Growth Study. Then simulated data for seven sets of 10,000 to 15,000 cases were analyzed, and findings compared on the basis of correlations between estimated and true growth scores. Findings showed that growth was…