Past research has examined the stress resiliency of individuals high in sense of personal-mastery. However, it has been theorized that within more collectivist cultures, a sense of shared efficacy, which we call communal-mastery, may be more central to people's resiliency in the face of challenging life circumstances. We compared the impact of sense of self-mastery (ie., "I am the key to my success") to that of communal-mastery (ie., "I am successful by virtue of my social attachments") in a prospective study among a group of rural 103 Native American women residing on Indian Reservations in Montana. We found that women high in communal-mastery experienced less increase in depressive mood and anger, especially when faced with high stress circumstances, than women who were low in communal-mastery. In addition, the beneficial impact of communal-mastery was found to be more effective than self-mastery for these women.

The impact of perceived child abuse history on 160 adult, Native American women's emotional well-being (i.e., depressive mood and anger) and AIDS risk was examined. How sense of mastery and social support might lead to women's greater resiliency was also investigated. Child physical-emotional abuse was found to have greater impact on depressive mood and anger and AIDS risk than did child sexual abuse. This finding was independent of current stress in women's lives. Women who were physically-emotionally abused as children had 5.14 times greater odds of having a sexually transmitted disease in their lifetimes than did women who experienced only marginal or no physical-emotional abuse. Moreover, consistent with the communal culture of Native Americans, social support was found to contribute more to resilience than sense mastery did. Reasons for the greater predictive power of child physical-emotional abuse compared with child sexual abuse in a growing number of studies are discussed.

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