Application of Regression Analysis Concepts to Retrospective Research in Speech Pathology The underlying logic of retrospective research in speech pathology is examined critically. This research model focuses on differences among discrete groups. Regression analysis concepts are suggested as a tool to evaluate the practical or theoretical importance of statistically significant differences obtained in retrospective research. This type of analysis focuses on ... Tutorial
Tutorial  |   March 01, 1976
Application of Regression Analysis Concepts to Retrospective Research in Speech Pathology
 
Author Affiliations & Notes
  • Martin A. Young
    Illinois State University, Normal
  • Martin A. Young

    Editor’s Note: This is the first in a series of invited tutorial articles intended to be of use to the readership and to potential contributors to the Journal. This particular article, contributed by Martin Young, deals with the use of the retrospective research model in speech pathology. Well over half of the speech pathology manuscripts submitted for publication in JSHR involve use of some form of the retrospective research model. Unfortunately, the authors of these manuscripts often fail to take full advantage of the model because they concentrate only on the differences between group means and ignore the predictive potential to be found in the model. Hopefully, this invited presentation will alert contributors to this latter potential.

Article Information
Tutorials
Tutorial   |   March 01, 1976
Application of Regression Analysis Concepts to Retrospective Research in Speech Pathology
Journal of Speech, Language, and Hearing Research, March 1976, Vol. 19, 5-18. doi:10.1044/jshr.1901.05
History: Received June 23, 1975
 
Journal of Speech, Language, and Hearing Research, March 1976, Vol. 19, 5-18. doi:10.1044/jshr.1901.05
History: Received June 23, 1975

The underlying logic of retrospective research in speech pathology is examined critically. This research model focuses on differences among discrete groups. Regression analysis concepts are suggested as a tool to evaluate the practical or theoretical importance of statistically significant differences obtained in retrospective research. This type of analysis focuses on the degree to which a criterion measure can be predicted from knowledge of group classification, rather than on differences among means.

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