The Use of Contrast Coefficients: Supplement to McNeil, Kelly, and McNeil, Testing Research Hypotheses Using Multiple Linear Regression

In addition to providing a direct appli­cation of the approach of McNeil, Kelly, and McNeil (Southern Illinois University Press, 1975) , Ernest L. Lewis and John T. Mouw update the practice of multiple regression analysis and thus enhance the use of this popu­lar technique in applied research. Writ­ten and organized for the learner, this new work uses contrast coding pro­cedures which provide means for re­searchers in experimentally oriented statistics to run specific contrasts in multiple regression.As users of the McNeil, Kelly, and McNeil text will know, that work stressed representative research design. In supplementing the earlier work, Lewis and Mouw have developed a com­panion text providing the experimental design bias. The two texts taken to­gether give the content-oriented re­searcher an approach that is understand­able without sacrificing rigor or utility.