The purpose of this study was to evaluate a brief version of the Alcohol Expectancy Questionnaire-Adolescent (AEQ-A; Brown, Christiansen, & Goldman, 1987). The original AEQ-A was reduced to seven items (called the AEQ-AB). Principal Components Analysis (PCA) was performed and two factors emerged (General Positive Effects and Potential Negative…

Mackintosh and Bennett [Mackintosh, N. J., Bennett, E. S. (2005). What do Raven's Matrices measure? An analysis in terms of sex differences. "Intelligence, 33," 663-674] reported that male students obtained higher scores than females on Raven's items that required for their solution addition/subtraction or distribution of two rules, but…

The general use of the Spearman-Brown formula for calculating the reliability of parallel tests with different lengths is reviewed. The importance of the assumption that the component tests be parallel is noted and the property that parallel tests must be non-negatively correlated is derived. (Author)

A novel use of periodic functions, called the periodic procedure, was recently introduced to make practical the use of certain physical measurement ideas in psychology. This paper reports a successful attempt to apply the periodic procedure to an important psychological measurement problem, the measurement of aptitude test item difficulties. The…

Bounds are obtained for a coefficient proposed by Kaiser as a measure of average correlation and the coefficient is given an interpretation in the context of reliability theory. It is suggested that the root-mean-square intercorrelation may be a more appropriate measure of degree of relationships among a group of variables. (Author)

THIS STUDY WAS CONDUCTED TO (1) DETERMINE WHETHER DIFFERENCES IN TYPING TEST LENGTH, CONTENT, FORMAT, AND TIME LIMIT HAVE ANY EFFECT ON TEST SCORES, AND (2) COMPARE THE RELIABILITY OF 5-MINUTE TYPING TESTS WITH THAT OF 10-MINUTE TESTS. TWO EQUIVALENT FORMS OF THE U.S. EMPLOYMENT SERVICE TYPING TEST AND ONE FORM OF THE U.S. CIVIL SERVICE COMMISSION…

The development of perceptual-motor integration is an important area of study for the educational psychologist. This capacity is intimately or closely related to the development of reading and writing skills in children. This study reports a preliminary investigation of the reliability of one current test of this capacity, the Minnesota…

An overview of generalizability theory and a FORTRAN computer program for studying the generalizability of scores in a three facet, four factor design are presented. An illustrative example is presented. (Author/JKS)

An efficient algorithm for maximizing split-half reliability coefficients is described. Coefficients derived by the algorithm were found to be generally larger than odd-even split-half coefficients or other internal consistency measures and nearly as large as the largest split half coefficients. MSPLIT, Odd-Even, and Kuder-Richardson-20…

Shoemaker's conclusions related to the influence of various data base characteristics (reliability, variability of item difficulty indices, and degree of skewness in the normative distribution) on the standard error of a mean estimated via multiple matrix sampling procedures are examined. (Author/RC)

Considers both validity and reliability simultaneously in selecting the best short forms (SFs) of the Wechsler Adult Intelligence Scale-Revised (WAIS-R). Results indicate that incorporating reliability as a criterion has a dramatic impact on the obtained best SFs. (LLL)

Reports the validities and reliabilities of two short forms of the Wechsler Adult Intelligence Scale (Revised) (Vocabulary and Block Design, and Arithmetic and Picture Arrangement) for each of nine age groups, together with standard errors of estimate and measurement. Results support the use of these forms for their intended purpose. (BH)

A rationale for, and a relatively simple method of estimating the reliability of an observational method are described. A separate "reliability study," while not required, may be employed when examining data. Empirical findings show that high frequencies of occurrence are not necessary prerequisites for the reliable measurement of behavior.…