The above empirical research has demonstrated that when group membership is made salient and known to both parties, trust is granted more readily to in-group members than out-group members.    This occurred even when the in-group stereotype was comparatively less positive than an out-group’s (. psychology versus nursing majors),  in the absence of personal identity cues,  and when participants had the option of a sure sum of money (. in essence opting out of the need to trust a stranger).  In contrast, when only the recipient was made aware of group membership trust becomes reliant upon group stereotypes.   The group with the more positive stereotype was trusted (. one’s university affiliation over another),  even over that of the in-group (. nursing over psychology majors).  Another reason for in-group favouring behaviours in trust could be attributed to the need to maintain in-group positive distinctiveness , particularly in the presence of social identity threat.  It should also be noted that trust in out-group strangers increased when personal cues to identity were revealed. 
While traditional psychologists specializing in close relationships have focused on relationship dysfunction, positive psychology argues that relationship health is not merely the absence of relationship dysfunction.  Healthy relationships are built on a foundation of secure attachment and are maintained with love and purposeful positive relationship behaviors. Additionally, healthy relationships can be made to "flourish." Positive psychologists are exploring what makes existing relationships flourish and what skills can be taught to partners to enhance their existing and future personal relationships. A social skills approach posits that individuals differ in their degree of communication skill, which has implications for their relationships. Relationships in which partners possess and enact relevant communication skills are more satisfying and stable than relationships in which partners lack appropriate communication skills.