Cluster Analyses of Life Changes

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Abstract
US Navy subjects' responses to the 42 separate life-change items contained in the Schedule of Recent Experience questionnaire were examined for interrelationships between the life-change events by a cluster analysis technique. This technique, the Iterative Intercolumnar Correlational Analysis, identified four clusters of life-change events which showed generally high intracluster and low intercluster correlations. These clusters of lifechange events dealt primarily with subjects' personal and social lives, work, marriage, and disciplinary problems. The utility of these findings appears to lie in the possible abbreviation of the life-changes questionnaire and in new quantitative methods for use of life-change data in near-future illness-prediction studies.

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