In recent years, numerous studies have documented the supportive role of primary groups-friends, neighbors, and kinduring periods of crisis within the life cycle. Primary groups have been shown to help ease the recovery from heart attacks (Croog, Lipson, and Levine 1972), to cushion the impact of involuntary job loss (Gore 1973, 1978), to lower the risk of complications following childbirth (Nuckolls, Cassel, and Kaplan 1972), and to ameliorate problems generic to child rearing, household finances, and employment (Lebowitz, Fried, and Madaris 1973). A related body of literature has described the resources provided by primary groups to victims of natural disasters (Quarantelli 1960; Drabek and Boggs 1968; Drabek, Key, Erickson, and Crowe 1975). Given the diversity of measurement approaches and subject matter, the findings of these studies are remarkably consistent: individuals with a high degree of primary group support are more likely to ease their way through stressful life events than are individuals with little or no The evidence supports the proposition that primary groups act as buffers or mediators of external stress by affirming the individual's sense of self-esteem and belongingness within a stable community. As with most developing research areas, the study of primary group support suffers from important gaps that impede further empirical and theoretical progress. One of the most important shortcomings is the overall lack of consensus over the nature of primary group Some investigators have limited the focus of concern to various forms of intangible emotional support, or moral support. Others have also included concrete forms of assistance, such as financial aid and services within the definition of social support.' In many studies, information about the origin, reliability, and validity of items that are taken as measures of support lacks sufficient detail to be useful in further replicative research. A related problem is the failure to give proper consideration to the differential forms of primary groups. Little attention is given to which types of primary groups provide which specific forms of assistance during times of crisis. Clearly, much can be gained by a more careful specification of the types of assistance provided by primary groups, the forms of primary groups that are involved, and the conditions under which assistance is rendered. These concerns provide the starting point of the present investigation.