Different indices for the internal consistency, reproducibility, or homogeneity of a test are based upon highly similar conceptual frameworks. Illustrations are presented to demonstrate how the maximum and minimum values of KR20 are influenced by test difficulty and the shape of the distribution of test scores. (Author/CTM)

On distractor-identification tests students mark as many distractors as possible on each test item. A grading scale is developed for this type testing. The score is optimal in that it yields an unbiased estimate of the student's score as if no guessing had occurred. (Author/JKS)

Howard's Maze test and Maw and Maw's Which-to-Discuss test were individually administered to 25 educable mentally retarded junior high school students. Although the internal consistency of both tests was acceptably high, scores were essentially unrelated to a host of demographic and other types of variables. (Author)

Assessed correspondence between the Carkhuff and the Truax scales for empathy. Undergraduates responded to nine simulated client statements. An overall correlation of .89 was found. Interrater reliabilities for both scales were high. Degree of correspondence between scales varied with the content-affect characteristics of the simulated client…

Asserts that tests of student performance in economics courses on the college level do not necessarily enable educators to infer anything about what students have learned or the manner in which they have learned it. Suggests that economics instruction be tailored to the individual, allowing for different learning styles. (Author/DB)

Reliability coefficients of linear combinations of observed scores have anomalous properties which have led to difficulties in the investigation of difference scores and gain scores in test theory. Discrepancies between classical results and correct results obtained from more general formulas, which allow for correlated errors, are examined…

The study involving 145 students (5-13 years old) referred for psychological evaluation explored the consequences of retesting upon student placement and the changes in test results. (SBH)

A total of 309 children were divided into eight groups on the basis of their Peabody Picture Vocabulary Test scores. The Nowicki-Strickland Locus of Control (LOC) Scale and the Children's Psychological Conservatism Scale were administered. Findings indicate a curvilinear relationship between verbal ability and the reliability of the LOC scale. (RH)

A study was made of the usefulness of the Infant Rating Scale (IRS) in the early identification of learning difficulties. Thirteen hundred five-year-olds were rated by their teachers after one term in school. The structure of the IRS, its reliability, and predictive validity are examined. (Author/SJL)

Female teachers rated 107 preschool boys and girls on their self-esteem and on a sex role rating scale. Although the validity of such ratings remains an issue, it appears that children rated high in self-esteem by their teachers are those perceived as assertive, active, athletic--stereotypically masculine traits. (Author/SJL)

Reports results of a study that examined (CSE) biology examinations to determine whether practical and theory examinations tested separate constructs. Multitrait-Multimethod matrices revealed evidence of convergent validity between two practical tests forming part of the same examination. Practical tests and written papers show very limited…

The present study investigated the stability of response intransitivity in the method of paired comparisons over a two-year period. Intransitivity scores obtained from two administrations of the Minnesota Importance Questionnaire were correlated to determine stability. Results provided support for the linear relationship between the two measures.…

When administered to 125 deaf youngsters, ages 5-12, the WISC performance test had good reliability and predictive validity, but administration to some young or physically handicapped children proved difficult. The Colored Progressive Matrices proved satisfactory with older subjects, but its suitability for younger deaf children was not confirmed.…

A nonrandomized minimax solution is presented for passing scores on mastery tests using the binomial error model. The computation does not require prior knowledge regarding an individual examinee or group test data for a population of examinees. A scheme which allows for correction for guessing is also described. (Author/JKS)

Reliability and factorial validity of the Attitudes Toward Mainstreaming Scale was supported in a cross-validation study with teachers. Three factors emerged: learning capability, general mainstreaming, and traditional limiting disabilities. Factor intercorrelations varied from .42 to .55; correlations between total scores and individual factors…