In a previous article, the authors described the construction of a quantitative hypothesis indicating the relative importance of such variables as blood lipids, blood pressure, family history of atherosclerotic disease, body build, and psychological traits in the production of coronary heart disease. The present article reports the use of factor rotation techniques to define and isolate more clearly a simple relationship between the factors concerned with coronary artery disease, on the one hand, and the physiological and psychological variables which are part of these factors, on the other.