How diverse are the samples used to study intimate relationships? A systematic review.

The social and behavioral sciences have long suffered from a lack of diversity in the samples used to study a broad array of phenomena. In an attempt to move toward a more contextually-informed approach, multiple subfields have undertaken meta-science studies of the diversity and inclusion of underrepresented groups in their body of literature. The current study is a systematic review of the field of relationship science aimed at examining the state of diversity and inclusion in this field. Relationship-focused papers published in five top relationship science journals from 2014-2018 (N = 559 articles, containing 771 unique studies) were reviewed. Studies were coded for research methods (e.g., sample source, dyadic data, observational data, experimental design) and sample characteristics (e.g., age, education, income, race/ethnicity, sexual orientation). Results indicate that the modal participant in a study of romantic relationships is 30 years old, White, American, middle-class, college educated, and involved in a different-sex, same-race relationship. Additionally, only 74 studies (10%) focused on traditionally underrepresented groups (i.e., non-White, low-income, and/or sexual and gender minorities). Findings underscore the need for greater inclusion of underrepresented groups to ensure the validity and credibility of relationship science. We conclude with general recommendations for the field.

When What Is Beautiful Is Not Good: The Role of Trait Self-Control in Resisting Eye Candy.

People are drawn to and like others who are physically attractive. In the present research, we investigated the influence of trait self-control on individuals' interest in relationships with physically attractive others. We hypothesized that high (vs. low) self-control individuals would approach relationships by considering information beyond appearance about potential partners, including partners' self-control. We additionally explored the influence of other traits (e.g., Big 5, self-esteem, and attachment styles) on relationship interest. Across studies, we consistently found that individuals with higher self-control avoided pursuing relationships with attractive individuals who display low self-control. In Study 3, we observed a similar pattern for three other traits: conscientiousness, extraversion, and positivity embracement. These results suggest perceivers' self-control shapes relationship interest, particularly when attractive individuals possess less desirable qualities. The findings extend past research that attractiveness increases interest in others and highlights the potential for trait self-control to direct relationship interest during initial interactions.

In good company: managing interpersonal resources that support self-regulation.

Effective self-regulation could involve not only managing internal resources for goal pursuit but also the often-fleeting interpersonal resources that can support goal attainment. In five studies, we test whether people who are effective self-regulators tend to position themselves in social environments that best afford self-regulatory success. Results indicated individual differences in self-regulatory effectiveness predict stronger preferences to spend time with, collaborate with, and be informed by others who were (a) high in self-control or self-regulation themselves or (b) instrumental to one's goal pursuit. These preferences for supportive social environments appeared to be both targeted and strategic. Together, the findings suggest that effective self-regulation may involve positioning oneself in social environments that support goal pursuit and increase one's chances of success.