For classical, norm-referenced test reliability, Cronbach's alpha has been shown to be equal to the mean of all possible split-half Pearson product-moment correlation coefficients, adjusted by the Spearman-Brown prophecy formula. For criterion-referenced test reliability, in an analogous vein, this paper provides the rationale behind, the analysis…

Three successively simpler formulas for approximating the standard error of measurement were derived by applying successively more simplifying assumptions to the standard formula based on the standard deviation and the Kuder-Richardson formula 20 estimate of reliability. The accuracy of each of these three formulas, with respect to the standard…

Two designs for comparing a judge's ratings with a known standard are compared: (1) Subjects are categorized into classes, with no knowledge of the size of either group; and (2) the judge is told the actual number allowed in each class. The probability distribution of the total number of correct choices is developed for each case, and their power…

A comparison of three multivariate models (canonical reliability model, maximum generalizability model, canonical correlation model) for estimating test battery reliability indicated that the maximum generalizability model showed the least degree of bias, smallest errors in estimation, and the greatest relative efficiency across all experimental…

Current methods for obtaining reliability indices for mastery tests can be laborious. This paper offers practitioners tables from which agreement and kappa coefficients can be read directly and provides criterion for acceptable values of agreement and kappa coefficients. (TJH)

States that taking a high school psychology course did not improve the performance of college students in an introductory psychology class on a modified version of Vaughan's misconceptions test (Test of Common Beliefs). Concludes that while college experience did lead to some improvement, comparison with other studies indicates that perhaps the…

An assessment instrument of the visual skills required for reading among macular loss individuals is presented along with a study involving 48 adults to evaluate its reliability. Data are included to verify claims regarding aspects of reading that are particularly problematic for macular loss individuals; rehabilitation techniques are suggested.…

Examined the reliability of the 30-item Modified Rathus Assertiveness Schedule (MRAS) using the test-retest method over a three-week period. The MRAS yielded correlations of .74 using the Pearson product and Spearman Brown correlation coefficient. Correlations for males yielded .77 and .72. For females correlations for both tests were .72.…

Bilingual subjects (N=61) completed the three forms of the Depression Adjective Check Lists (DACL), each of which was printed half in Spanish and half in English. No significant effects were found either for language or sex of subject. Findings supported use of DACL Spanish version with Spanish-speaking subjects. (NRB)

Presented data on the translation and on the reliability and concurrent validity of the Chinese version of the Depression Adjective Check Lists (DACL). Reliability and validity coefficients are significant and of sufficient magnitude to warrant their use in research (N=37).(Author)

Reports reliability data for Wechsler Subtest comparisons to supplement the data in the Wechsler Intelligence Scale for Children-Revised and Wechsler Adult Intelligence Scale-Revised manuals. Results indicated that the reliabilities of the differences between Wechsler Subtest scores are low enough to warrant the exercise of caution in interpreting…

The judged accuracy of narrative paragraph types and total reports of a new Minnesota Multiphasic Personality Inventory (MMPI) clinical interpretation simulation program is studied. A linear regression analysis of variance of overall narrative ratings with two narrative and four patient variables suggest that this system has considerable…