In administration of individually administered intelligence tests, items are commonly presented in a sequence of increasing difficulty, and test administration is terminated after a predetermined number of incorrect answers. This practice produces stochastically censored data, a form of nonignorable missing data. By manipulating four factors…

As item response models gain increased popularity in large-scale educational and measurement testing situations, many studies have been conducted on the development and applications of unidimensional and multidimensional models. Recently, attention has been paid to IRT-based models with an overall ability dimension underlying several ability…

A computer program which computes both the interjudge reliability of individual measurements and the extent to which the judges are biased in their ratings vis-a-vis each other is presented. The methods proposed are recommended on the basis of recent developments in statistical research. (Author/JKS)

Scores, hypothesized abilities and Scales on the Lorge-Thorndike Intelligence Tests (LT), Multi-Level Edition, were intercorrelated and factor analyzed to determine overlap of structure-of-intellect (SOI) ability measure, their degree of relationship with LT scales, and the possible presence of second order factors. (Author/BJG)

The validity of the Lollipop Test: A Diagnostic Screening Test of School Readiness was examined using the Metropolitan Readiness Test (MRT), Level I, Form Q, as the criterion. Appreciable concurrent validity was found across test batteries. Implications for school readiness screening are discussed. (Author/BS)

Samples of entering first-grade students were used to examine the predictive validity of the group administered Metropolitan Readiness Test (MRT) and the individually administered Meeting Street School Screening Test (MSSST). The advantage of the latter was found to possibly outweigh the advantage of efficiency in group administration. (Author/GK)

Factor analysis of an administration of the Raven Progressive Matrices Test to children in grades 1, 2, and 3 revealed three orthogonal factors interpreted as (1) concrete and abstract reasoning, (2) continuous and discrete pattern completion, and (3) pattern completion through disclosure. Results are discussed in several contexts. (RC)

Techniques for constructing short forms of tests are discussed, and an example is given using the Wechsler Adult Intelligence Scale-Revised. Reliability and validity estimation equations are presented. (GDC)

The concurrent validity of the Wechsler Preschool and Primary Scale of Intelligence (WPPSI) was assessed against the McCarthy Scales of Children's Abilities in a sample of 39 Mexican-American preschool children from low socioeconomic status background. Results indicated some specific support for the WPPSI's concurrent validity. (Author/BS)

Researchers sometimes need a statistical test of the hypothesis that two values of Cronbach's alpha reliability coefficient are equal. The situation may involve scores from two different measures administered to independent random samples or from the same measure administered to random samples from two different populations. Feldt derived a test…

The score distributions of the two methods of administration described in the title revealed comparable means, standard deviations, and general shape of distribution. With respect to validity coefficients, no appreciable differences were found. (JKS)