ERIC Number: ED093957
Record Type: Non-Journal
Publication Date: 1974-Apr
Some Empirical Evidence on the Stability of Discrepancy Measures Based on Observed and Predicted School Means on Achievement Tests.
Gastright, Joseph F.
An investigation was undertaken of the intercorrelations among residuals obtained by applying regression techniques under two conditions: (1) mean sixth-grade Metropolitan Achievement Test reading scores predicted by mean second-grade Stanford Achievement Test reading scores, and (2) mean sixth-grade reading scores predicted by mean second-grade reading scores and mobility variables. The predictions were performed on data for 66 elementary schools for three consecutive years. The addition of mobility variables significantly improved the prediction model. Intercorrelations among residuals within year and across models were uniformly high. (.77 to .94). Intercorrelations across years were not improved by the addition of mobility variables (.46 to .51). (Author)
Publication Type: Speeches/Meeting Papers
Education Level: N/A
Authoring Institution: N/A