Browsing by Author "Tinsley, Howard E."

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    A contribution to the construct validity of the Tennessee Self-Concept Scale: A confirmatory factor analysis
    (1981) McGuire, Beth; Tinsley, Howard E.
    Non-statistical confirmatory factor analyses of the items on the Tennessee Self-Concept Scale (TSCS) were performed on samples of 678 university students and 341 male juvenile offenders to test hypotheses regarding the internal structure of the instrument. For the college sample, good confirmation of the external and internal frames of reference postulated by Fitts (1965) were obtained, but support for the internal x external cross-classification was not obtained. No support for any of the hypotheses was found for the juvenile sample; rather, one major factor emerged. These findings are related to Super’s theory of self-concept development, and implications of these findings regarding the psychometric properties of the TSCS and its use are discussed.
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    Test-free person measurement with the Rasch simple logistic model
    (1977) Tinsley, Howard E.; Dawis, Rene V.
    This research investigated the use of the Rasch simple logistic model in obtaining test-free ability estimates. Two tests each of word, picture, symbol, and number analogies were administered to college and high school students. Differences between scores on each pair of tests were analyzed to determine whether the ability estimates were independent of the tests employed. The results indicate that raw-score ability estimates are influenced by the difficulty of the items used in measurement but that Rasch ability estimates are relatively independent of the difficulty of these items. The need is discussed for additional research in which an individualized item-presentation procedure is used with the Rasch model.