Alan J Klockars

Learn More
A common problem with standard five-point frequency rating scales is their inability to differentiate between objects within a relatively narrow band of the rating dimension. Two alternatives for increasing a scale's ability to reflect existing differences are: increasing the number of positions on the rating scale, or packing the rating scale with(More)
Questionnaire responses that encompassed the severity of acute, cheering-related dysphonia, typical vocal use, vocal history, medical history, smoking and drinking behaviors, and A-Scale personality characteristics were obtained from 146 female high school cheerleaders. Multiple-regression analysis was chosen to examine the degree to which the dysphonia(More)
This study examined the utility of a linear discriminant function to distinguish between students identified as learning disabled (LD) who had either been released from high school under codes suggestive of school dropout (n = 213) or graduation (n = 92). The discriminant function was comprised of six variables--student ethnicity, reading ability, family(More)
The seven Minnesota Multiphasic Personality Inventory (MMPI) scales developed by Tryon, Stein, and Chu were intercorrelated and factor analyzed by the method of principal components. Included in the analysis were three marker scales for the first three principal components of the MMPI: the SD scale, the R scale, and the L scale, respectively. All of the TSC(More)
Locus of control has emerged as an important outcome variable in many health education programs. This study evaluated one instrument designed to measure this construct. Responses to the Parcel-Meyer Children's Health Locus of Control Scale from two groups of sixth grade students were collected to consider fit of the items to the underlying theoretical model(More)