Hardiness and health: A critique and alternative approach.

Recent research has suggested that individual differences in the personality variable of hardiness are related to health and illness. Despite some success at predicting health outcomes, there are several theoretical and empirical problems that must be addressed before research on this topic can proceed. Most critical are (a) how hardiness is to be measured; (b) whether hardiness should be treated as a unitary phenomenon or as three separate phenomena associated with commitment, control, and challenge; and (c) whether hardiness has direct effects on health or indirect effects by virtue of buffering the impact of stressful life events. After reviewing the literature and presenting our own study of the psychometric properties of the Hardiness Scale and its subcomponents, we draw the following conclusions: (a) Hardiness is not a unitary phenomenon, but should be treated as involving three separate phenomena; (b) of the three subcomponents of hardiness, only commitment and control have adequate psychometric properties and are systematically related to health outcomes; (c) lack of control and lack of commitment have direct effects on health because they are psychologically stressful; and (d) if there are buffering effects of commitment and control, they are in addition to these direct effects and are situation specific. Such a systematic consideration of the problems and prospects of the hardiness literature should facilitate research on this important topic.