Compared six effect size (ES) measures commonly used by gerontological researchers as these measures relate to one another in both the analysis of variance and multiple regression models. Also discusses three other issues involving ES measures: the ES of a contrast; orthogonal and nonorthogonal designs; and partial ESs. (Author/JAC)

The Wechsler Preschool and Primary Scale of Intelligence (WPPSI) has recently undergone a major revision and restandardization to update its 20-year-old norms, extend the age range down to age 3 and up to age 7 years, update and revise its test items, and increase its appeal to young children. This paper presents the results of a concurrent…

This study was designed to investigate the effects of winning and losing competition upon the aggressive responses of intercollegiate basketball players and wrestlers. The Rosenzweig Picture-Frustration Study was administered to 32 Springfield College undergraduates (1) during a normal emotional state, (2) after winning a content, and after losing…

This study was designed to investigate styles of field approach, conceptual organization, and verbal responsiveness in preschool children. These dimensions were described in terms of constructs Witkin, Kagan, and Zigler. Subjects were 23 girls and 23 boys between 50-63 months of age. Measures administered to each subject individually in the same…

One hundred and twenty-eight subjects responded to one of four differently labeled five-point Likert-type response scales. Although no significant differences in test means and in reliability estimates were found among response scales, the scales did differ on measures of variability. (Author/LMO)

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…

AT THE FLORIDA STATE UNIVERSITY SCHOOL, A LONGITUDINAL STUDY ATTEMPTED TO FIND OUT IF KINDERGARTEN THROUGH THIRD GRADE CHILDREN WHO ATTENDED THE EXTENDED SCHOOL YEAR OF THE TRIMESTER SYSTEM SHOWED SIGNIFICANT DIFFERENCES IN ACHIEVEMENT AND ADJUSTMENT AS COMPARED WITH CHILDREN OF A SIMILAR MEAN IQ WHO ATTENDED ONLY DURING THE REGULAR SCHOOL YEAR.…

The accuracy of estimating test means for groups of twelfth-grade students by the item-sampling technique was examined. The subjects were from 35 twelfth-grade schools participating in the National Longitudinal Study of Mathematical Abilities. Half of the students in each school were assigned to a treatment condition where they took a complete…

The hypothesis that first-year medical residents' evaluate their performance in a more differentiated manner than their supervisors was evaluated. An evaluation form was developed to obtain ratings of performance in 13 specific areas. Results showed that residents were more discriminating than supervisors in evaluating residents performance. (JAZ)

Describes study that investigated the effects of computerized test administration on undergraduates' responses to the Minnesota Multiphasic Personality Inventory (MMPI), and discusses methodological considerations important in evaluating the sensitivity of personality inventories in different administration formats. Results analyze the effects of…

This study compares the McCarthy Scales of Children's Abilities (MSCA) and the Kaufman Assessment Battery for Children (K-ABC) profiles of successful and unsuccessful preschoolers with learning disabilities. Subjects, 40 preschool students, were tested at the beginning and at the end of the preschool year and were placed into repeating or…

A statistical method has been developed for nested incomplete samples in a longitudinal study in which part of the sample has dropped out in such a way that the data have a nested pattern. A procedure which performed well in a Monte Carlo experiment was extended to a two-factor incomplete design with repeated measures on one factor. Methods…

Two studies were conducted to determine the ability of the Project MINI-SCORE test battery to differentiate among graduates from different vocational curriculums and among graduates and dropouts from selected vocational curriculums. The population used in the first study consisted of 1,696 graduates from seven predominantly male and five…

A cross-racial comparison of the Wechsler Adult Intelligence Scale (WAIS) was made with the revised version, the WAIS-R. Three groups of Anglo, Black, and Mexican-American male college students were administered both versions of the WAIS on the same day. Significant differences were found among the racial groups. (Author/LMO)