Around consensual non-monogamies – assessing attitudes toward non-exclusive relationships

Consensual non-monogamy is a term used to describe intimate romantic relationships which are sexually and/or emotionally non-exclusive. The present study examined the social norms which are violated by different forms of consensual nonmonogamy,and the negative judgements that result. We asked 375 participants to rate hypothetical vignettes of people involved in one of five relationship types (monogamy, polyamory, an open relationship, swinging, and cheating) on items related to relationship satisfaction, morality, and cognitive abilities. The monogamous couple was perceived most favourably, followed by the polyamorous couple, then the open and swinging couples who were rated equally. Participants judged the cheating couple most negatively. Although social norms of sexual and emotional monogamy are important, we conclude that the aspect that has the most effect on judgements is whether the relationship structure has been agreed to by all parties.