The purposes of this paper are to identify common errors made by researchers when dealing with reliability coefficients and to outline best practices for reporting and interpreting reliability coefficients. Common errors that researchers make are: (1) stating that the instruments are reliable; (2) incorrectly interpreting correlation coefficients;…

Testing programs that report a single score based on multiple choice and performance components must face the issue of how to derive the component scores. This paper identifies and logically evaluates alternative component weighting methods. It then examines composite reliability and validity as a function of weights, component reliability,…

This paper reviews issues involved in converting continuous variables to nominal variables to be used in the OVA techniques. The literature dealing with the dangers of dichotomizing continuous variables is reviewed. First, the assumptions invoked by OVA analyses are reviewed in addition to concerns regarding the loss of variance and a reduction in…

The stabilities of standardized (ß) and structure (rs) coefficients in canonical (CA) and discriminant analyses (DA) were studied. Four different situations were studied--two pertaining to CA and two to DA. The situations were meant to represent "somewhat typical" and yet varying research conditions that often would not be thought to be…

The major goal of this paper was to provide a definition and measure of profile reliability and considered the problem of constructing reliable profile dimensions. (Author/RK)

A study, providing an alternative to traditional closure systems of measurement, explores the reliability and use of carefully anchored rating scales to establish rehabilitation clients' physical, educational, and psychosocial functioning and, thus, assess client status or change. (EA)

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…

The specific purpose of the present study was to evaluate the Hostility and Direction of Hostility Questionnaire (HDHQ) developed by Caine, Foulds, and Hope (1967) with a view to enhancing discriminant validity and suppressing the effects of desirability responding." (Author)

The use of separate answer sheets on the reliability of measurement and the level of performance of 156 severely hearing impaired and deaf students, 8 to 10 years of age and older, was examined. Analyses revealed no differential impact attributable to the two modes upon reliability and level of performance. (Author/CL)