Working under classical test theory (CTT) and item response theory (IRT) frameworks, this study investigated psychometric properties of the Revised Purdue Spatial Visualization Tests: Visualization of Rotations (Revised PSVT:R). The original version, the PSVT:R was designed by Guay (1976) to measure spatial visualization ability in…

The field dependency/independency construct (FDI) was measured using tests of perception of the upright such as the Rod and Frame Test (RFT) and tests of cognitive restructuring such as the Hidden Figures Test (HFT); relationships between cognitive restructing and perception of the upright were investigated. High school seniors received 34 tests…

A Wherry-Wherry hierarchical factor analysis was performed on the Wechsler Preschool and Primary Scale of Intelligence (WPPSI) subtest intercorrelations for each of six age groups. A hierarchical arrangement of abilities highly congruent with Vernon's structure of intellect theory was obtained. The findings support the construct validity of the…

The scores of 79 second-grade pupils on the Ravens Colored Progressive Matrices and the Bender Gestalt were factor-analyzed using six different factor-analytic procedures. Sex, age, and vocabulary test scores were included in the analysis as marker variables. The original factor solutions were subjected to oblique transformation and the…

Twenty-six test variables for psychological differentiation and cognitive abilities were factor analyzed with a view towards replication of certain factors of perceptual and conceptual differentiation and related these factors to cognitive abilities. (Author)

A battery of perceptual motor skills tests was administered to 107 freshman and 84 senior dental students for the purposes of determining the factor structure of the battery and studying differences between the two groups. The tests used included Minnesota Rate of Manipulation Test (MRM), Placing and Turning; O'Connor Finger Dexterity; O'Connor…

A variety of factor analysis techniques were employed to explore the structure of five reading readiness instruments (Gates Reading Readiness Test, Developmental Tests of Visual Perception, Metropolitan Readiness Tests, Specially Constructed Readiness Test by Olson, Wechsler Intelligence Scale for Children) as predictor variables of performance on…

The effects of various rates of presentation were studied in combination with massed and spaced, concurrent and nonconcurrent, overt and covert practice modes on film-mediated perceptual performance. Selected values of the independent variables were investigated within a 3x3x2 factorial design, and the experimental treatments were randomly ordered…