ABSTRACT
Despite religious and cultural precepts that forbid sexual activities outside marital relationships, such behaviors have continued in most societies and are common in the United States. Fifty years ago, Kinsey and associates found that one in two husbands (Kinsey, Pomeroy, & Martin, 1948) and one in four wives (Kinsey, Pomeroy, Martin, & Gebhard, 1953) had engaged in extramarital sex. During the peak of the "sexual revolution" 20 years later, the reported numbers of unfaithful women increased (Tavris & Sadd, 1975), and categories of affairs were defined on the basis of approval or disapproval and knowledge or lack of know 1edge by the spouses about the affair (O'Neill & O'Neill, 1976; Rubin & Adams, 1986). In surveys published in the United States in the past 2 decades, more than 50% of men and women admitted they had engaged in marital infidelity at some time in their marriage (Glass & Wright, 1992; Hatcher et al., 1990; Thompson, 1983).
