James G. Andress

Mr. James G. Andress is a veteran of the health care and pharmaceutical industry who has served in senior management positions at SmithKline Beecham, Sterling Drug, Inc. and Abbott Laboratories. He serves on the boards of Allstate Corporation, Dade Behring, Inc., Sepracor, Inc. and Xoma Corporation. Andress has an MBA in marketing and finance from the Wharton School of Finance and Commerce and a BS in engineering from the United States Military Academy at West Point.

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Predictive Validation of Multivariate Models: Regression vs. Trees

Chapter 3: Predictive Validation of Multivariate Models: Regression vs. Trees

Chapter 3 of Multivariate Methods for Market and Survey Research

The chapter provides a comparative analysis of regression models and tree analysis. The text describes the superiority of tree analysis due to its capabilities with exploratory research, fewer assumptions about data, and with large sample sizes. The criterion for superiority is based on the model’s ability to make predictions on new data.

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