Addendum to “Cross-Validating Regression Models in Marketing Research” Vol. 12, No. 4, Fall 1993, pp. 415–427

In our paper, “Cross-Validating Regression Models in Marketing Research,” which appeared in the Vol. 12, No. 4, Fall 1993 issue of Marketing Science, pp. 415–427, we develop a formal statistical test for cross-validating regression models under the simple random splitting framework. The original publication neglected to present definitions for two of the parameters used. We present these in this Addendum.