title: Tutorial: application of regression analysis concepts to retrospective research in speech pathology.
abstract: 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.
mesh_terms: D000328:Adult; D002648:Child; D002675:Child, Preschool; D005069:Evaluation Studies as Topic; D006801:Humans; D012044:Regression Analysis; D012107:Research Design; D012189:Retrospective Studies; D013070:Speech Therapy / Q000379:methods*; D013223:Statistics as Topic