Reports on a study providing evidence that prior knowledge influences the comprehension of texts and that the effect is not because of contrived materials or other validity problems. (FL)

A study involving all students taking the California Achievement Test (CAT) in the Cleveland City School District (Ohio) during the fall of 1989 was conducted to assess the effects of the use of parallel test forms. Each spring, all students in grades 4, 6, and 8 are selected to take the appropriate level of the CAT reading test, Form E. As a…

The purpose of this research was to develop and test a method of identifying groups of students participating in a mandated statewide norm-referenced testing program who have undergone highly specific training in preparation for, or coaching during, test administration. The implementation of the analysis procedure was intended not only to identify…