Alan J. Klockars

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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)
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)
Examined two assumptions about the dimensionality of Rotter's I-E scale: First, the bipolarity of the two statements within each item pair; second, the unidimensionality of the overall construct. A revised I-E scale was constructed in which each of the statements from the original I-E scale was presented separately and the 367 subjects could accept or(More)