Two problems in the investigation of predictive bias in tests, the effect of unreliability of the predictors, and the effect of excluding a predictor from the regression equation on which there are preexisting group differences, are discussed. (Author)

Behavioral Expectation Scales (BES) were compared to summated and trait-oriented scales as measures of teaching performance. The psychometric evidence suggests that the summated format is slightly superior. In terms of practicality (ease of use, defensibility, and accuracy), the summated scale is definitely superior. (Author/BW)

The reliability of simple difference scores is greater than, less than, or equal to that of residualized difference scores, depending on whether the correlation between pretest and posttest scores is greater than, less than, or equal to the ratio of the standard deviations of pretest and posttest scores. (Author)

Comparison of the Goodenough-Harris and McCarthy scoring procedures for 60 kindergarten children's drawings yielded substantial agreement between the two scoring systems. The streamlined McCarthy scoring system should be utilized when large numbers of children are being evaluated with short periods of time. (Author)

Reliabilities for the Raven Colored Progressive Matrices Test (CPM) are reported for three age groups (ages 5 1/2- 6 1/2, 6 1/2-7 1/2, and 7 1/2-8 1/2 years) and three ethnic groups (Anglo, Black, and Hispanic). Results indicate CPM is not equally reliable for all age groups, but appears equally reliable for the three ethnic groups. (Author)

Compared the MMPI Scale 5 to the Bem Sex Role Inventory and Personal Attributes Questionnaire. Femininity measures were related more strongly to Scale 5 score than masculinity measures. It was concluded that Scale 5 may be interpreted more accurately as a measure of femininity rather than masculinity/femininity. (Author)

A class of naive estimators of correlation was tested for robustness, accuracy, and efficiency against Pearson's r, Tukey's r, and Spearman's r. It was found that this class of estimators seems to be superior, being less affected by outliers, reasonably efficient, and frequently more easily calculated. (Author/CTM)

The mean IQ on the Slosson Intelligence Test (SIT) was substantially higher than expected based on the earlier Peabody Picture Vocabulary Test (PPVT) scores. Sampling error and examiner error were excluded as explanations. Results suggest that the PPVT and SIT yield different scores and lack comparability. (Author)

Seeking to compare the original Wechler Intelligence Scale (WISC) with its revised version, the WISC-R, this study compared WISC-R scores of 50 Black children with their WISC scores taken two years previously. Mean scores on the WISC-R were lower on the Verbal Scale, Performance Scale, and Full Scale. (DS)

This study provides an analysis and cross-validation of the Strong Vocational Interest Blank (SVIB) occupational introversion-extroversion (OIE) scale, a parent of the IE scale in the Strong-Campbell Interest Inventory (SCII). (Author)

Derived general formulas to determine the sample size requirements for hypothesis testing with desired power and interval estimation with desired precision. Illustrated the approach with the example of a screening test for adolescent attention deficit disorder. (SLD)

Provides a critical and comparative evaluation of the five most commonly used published rating scales for the assessment of ADHD. Reviews were conducted in four main areas: content and use, standardization sample and norms, scores and interpretation, and psychometric properties. Scales with the strongest standardization samples and evidence for…

Using several data sets, the relative performance of the beta binomial model and two more general strong true score models in estimating several indices of classification consistency is examined. It appears that the beta binomial model can provide inadequate fits to raw score distributions compared to more general models. (TJH)

This empirical study of undergraduates compared the psychometric properties, i.e., reliability and validity, of four computer attitude measures and their subscales. Results are analyzed that indicate all measures tested were essentially equal in terms of reliability and validity, and attempts to empirically derive improved scales were…