Identifying Moderator Variables Using Multiple Regression: A Reply to Darrow and Kahl
指出Darrow和Kahl（1982）关于检测调节变量的论文存在逻辑和方法问题，并论证标准层次回归模型是识别调节变量的正确方法。
Darrow and Kahl's (1982) paper on detecting moderator variables is misleading because it contains both logical and methodological problems. The present paper was written to respond to two of those problems: their distinction between pure and mixed moderators and their choice of model for testing for moderator effects. In this paper we show that the distinction between pure and mixed models is uninformative and that the standard hierarchical regression model represents the appropriate method for identifying moderator variables.