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Role of Prior Illness, Stress, and Personality in Predicting Illness
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Studied personality as a conditioner of the effects of stressful life events on illness onset. Two groups of middle- and upper-level 40-49 yr old executives had comparably high degrees of stressful life events in the previous 3 yrs, as measured by the Schedule of Recent Events. One group of 86 Ss suffered high stress without falling ill, whereas the other group of 75 Ss reported becoming sick after their encounter with stressful life events. Illness was measured by the Seriousness of Illness Survey (A. R. Wyler et al 1970). Discriminant function analysis, run on half of the Ss in each group and cross-validated on the remaining cases, supported the prediction that high stress/low illness executives show, by comparison with high stress/high illness executives, more hardiness, that is, have a stronger commitment to self, an attitude of vigorousness toward the environment, a sense of meaningfulness, and an internal locus of control. (43 ref) (PsycINFO Database Record (c) 2006 APA, all rights reserved).
The development of the Multidimensional Health Locus of Control scales is described. Scales have been developed to tap beliefs that the source of reinforcements for health-related behaviors is primarily internal, a matter of chance, or under the control of powerful others. These scales are based on earlier work with a general Health Locus of Control Scale, which, in turn, was developed from Rotter's social learning theory. Equivalent forms of the scales are presented along with initial internal consistency and validity data. Possible means of utilizing these scales are provided.
Three personality dimensions, derived by factor analysis from the Omnibus Personality Inventory, are examined as possible intervening variables between recent life experience and subsequent health change in a college population. All three personality measures, social conformity, liberal intellectualism and emotional sensitivity, are found to be independently and significantly predictive of health change; these relationships hold even when recent life experience is introduced as a significant predictor of health change. The addition of personality measures to information about recent life experience sinificantly improves the predicability of deleterious health change. The results are discussed in the context of factors which promote resistance to health breakdown after life changes.