There is evidence that pre-tests can have orienting and motivational and teaching functions - in addition to the sought-for testing function. There is also evidence that these additional functions can be either general or specific. The present paper contributes to the ongoing debate by discussing the issues involved in the context of a series of…

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…