The wedding ring effect-or mate-choice copying in humans-is the notion that individuals, particularly women, have a greater preference for those who are currently involved in romantic relationships as their partners over uninvolved individuals. This book provides a thorough, critical review of previous research on the wedding ring effect and presents a study that examined two manipulated independent variables of romantic targets (i.e., relationship availability and openness to commitment), as well as one independent individual difference variable of participants (i.e., ...