In confirmatory factor analysis quite similar models of measurement serve the detection of the difficulty factor and the factor due to the item-position effect. The item-position effect refers to the increasing dependency among the responses to successively presented items of a test whereas the difficulty factor is ascribed to the wide range of…

A multiple testing procedure for examining implications of the missing completely at random (MCAR) mechanism in incomplete data sets is discussed. The approach uses the false discovery rate concept and is concerned with testing group differences on a set of variables. The method can be used for ascertaining violations of MCAR and disproving this…

The authors encourage those in the field of school psychology to consider the use of learning disabilities assessment practices in relation to specific American Psychological Association and National Association of School Psychologists ethical codes and in regard to the American Educational Research Association, American Psychological Association,…

The authors argue that upon publication of a paper, the data should be made available through online archives or repositories. Reasons for not sharing data are discussed and contrasted with advantages of sharing, which include abiding by the scientific principle of openness, keeping the data for posterity, increasing one's impact, facilitation of…

In the first article of this special issue of the "Journal of Psychoeducational Assessment", I critiqued Flynn's theoretical explanation of the Flynn effect because he depended too heavily on an apparently huge generational gain on the WISC Similarities subtest; I claimed he was comparing apples with oranges because that subtest changed too much…

A COMPARATIVE STUDY OF GEOGRAPHIC AND SCHOOL MOBILITY IN AREAS OF HIGH AND LOW DELINQUENCY RATE IS REPORTED. THE HIGH DELINQUENCY GROUP CONSISTED OF 373 ELEMENTARY SCHOOL STUDENTS IN YOUTH DEVELOPMENT PROJECT TARGET AREAS AND THE LOW DELINQUENCY GROUP WAS MADE UP OF 425 CHILDREN FROM OTHER PARTS OF MINNEAPOLIS. DATA GATHERED FROM SCHOOL AND POLICE…

THIS EVALUATION CONTAINS DETAILED INFORMATION ON THE FIRST YEAR OF SAN FRANCISCO'S PREKINDERGARTEN AND COMPREHENSIVE COMPENSATORY EDUCATION PROGRAMS FOR CHILDREN OF ALL AGES FUNDED UNDER THE ELEMENTARY AND SECONDARY EDUCATION ACT (ESEA) OF 1965. SOME OF THE ACTIVITIES IN THE COMPREHENSIVE PROGRAM WERE TO REDUCE PUPIL-TEACHER RATIO AND CLASS SIZE,…