Using a modified Posner "encoding function" methodology, group differences in semantic encoding speed were assessed under conditions in which subjects encoded pictures of common objects to determine physical identity matches, name identity matches, and superordinate identity matches. Results of primary interest revealed group differences in basic…

Grade level norms were developed, based on a sample of 678 elementary school students, for various error scores of the Benton Visual Retention Test. Norms were also developed for 201 normal children, 58 minimal brain dysfunction children, and 101 educable mentally retarded children. In both the copying mode and the memory mode, most errors were…

A refined and extended analysis of variance (ANOVA) approach was used to investigate the pattern of relationships among arithmetic ability; reading ability; and general ability as assessed by teacher ratings and standardized tests, over a three-year period, with 54 educable mentally retarded children, initially 12 years old. (Author)

Results of applying different aptitude-achievement discrepancy models for test scores were compared for 150 second, 150 third, 150 fourth, and 130 fifth graders in several school systems in the Southeast who had been referred for psychoeducational testing for learning disabilities to determine whether different groups of students were identified…

The stability of the Kaufman Assessment Battery for Children (K-ABC) was studied by examining its performance over a 5-year interval with 16 non-handicapped children aged 45 to 61 months at the beginning of the study. Global scale stability coefficients (corrected for restriction in range) for Time 1 testing (age 4 years) and Time 4 testing (age 9…

Test item selection techniques based on traditional item analysis methods were compared to techniques based on item response theory. The consistency of mastery classifications in criterion referenced reading tests was examined. Pretest and posttest data were available for 945 first and second grade students and for 1796 fourth to sixth grade…