Froberg D, Gjerdingen D, Preston M
Women Health. 1986 Summer;11(2):79-96. doi: 10.1300/J013v11n02_06.
Research on the effects of multiple roles on women's health has in the past been conducted within the context of two competing hypotheses: the scarcity hypothesis and the expansion hypothesis. Empirical evidence is more supportive of the expansion than the scarcity hypothesis, i.e., women who occupy several roles are healthier than those with few. However, this generalization obscures important health differentials related to types of roles occupied and attributes of those roles. Research on multiple roles is now shifting from examining numbers of roles to analyzing the effects of specific role combinations, patterns, and characteristics. Further research is needed to identify ways in which rewards and stresses within each role interact to produce health outcomes.
过去，关于多重角色对女性健康影响的研究是在两种相互竞争的假设背景下进行的：稀缺假设和扩展假设。实证证据更支持扩展假设而非稀缺假设，即承担多个角色的女性比承担较少角色的女性更健康。然而，这种概括掩盖了与所承担角色类型及其属性相关的重要健康差异。目前，关于多重角色的研究正从考察角色数量转向分析特定角色组合、模式和特征的影响。需要进一步的研究来确定每个角色中的回报和压力相互作用产生健康结果的方式。
