Abstract and Keywords
This chapter reviews the reciprocal relationship between committed relationships and substance use. Relationship processes affect substance use in three major ways. First, married people tend to use fewer substances than unmarried people, a phenomenon known as the marriage effect. Second, through assortative mating and convergence, spouses tend to be similar to each other in terms of substance use. Third, lower marital quality is associated with increased substance use. Substance use also affects three aspects of marital quality: greater substance use is associated with more negative marital interactions, decreased marital satisfaction and stability, and increased intimate partner violence. The effect of concordance in substance use is discussed. Current limitations of the literature and future directions are described.
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