Mean Level and Variability in Affect and Perceived Regard: A Dyadic Daily Diary Study of African American Couples
High levels of positive affect and low levels of negative affect have been repeatedly tied to better individual and relational well-being. However, research has largely focused on mean levels of affect whereas the day-to-day unfolding of affect and its impact on romantic relationships remain unclear. Here, we examined the links between affect variability, mean levels of affect, and changes in perceptions of partner regard —the extent to which people believe that their partners value and accept them—. One hundred and eighty African American couples (N = 360) reported how positively they thought their partner viewed them in two sessions (T1 and T2), separated by a 21-day diary burst in which participants reported on their positive and negative affect. Using a dyadic analysis, we found that high levels of actor negative affect variability were associated with lower positive perceived regard at T2 controlling for perceived regard at T1. This finding did not hold when controlling for mean levels of actor and partner negative affect. There is no evidence of positive affect variability on perceived regard, but the mean level of actor positive affect was associated with more favorable perceived regard. These results highlight the importance of controlling for mean levels of affect when examining affect dynamics.