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Abstract
The present investigation sought to identify the principal dimensions of the Framingham Type A scale (FTAS) and then to examine their physiological and psychological correlates. A factor analysis of the FTAS items, which was cross-validated, revealed two factors. Items concerning achievement and competitive-striving loaded primarily on the first factor. Scores on a subscale composed of these items (labeled Competitive Drive) were related to systolic blood pressure reactivity during an interpersonal task but were unrelated to anxiety. FTAS items concerning impatient, time urgent, and domineering propensities loaded primarily on the second factor. Scores on a subscale composed of these items (labeled Speed and Impatience) were not related to cardiovascular reactivity during the task but were related to anxiety. Results are discussed in terms of the psychological heterogeneity of the Type A behavior pattern and possible differences between dimensions of the overall Type A pattern and their association with different manifestations of coronary heart disease.