linear and equipercentile equating methods, used operationally to put new forms on scale, were applied.The results of the study indicate, using scale drift as the evaluative criterion, that it is feasible to use item response theory to equate the four Achievement tests selected for investigation....
Students in ninth grade English classes who used Criterion several times a week over a 1 month period received higher analytic scores on their essays written at the end of the study period than those who were in classes that did not. The effect was small, but statistically significant at the...