Abstract
Theories of empathy highlight the importance of affective congruence, which is the degree to which we match an interaction partner in negative or positive affect. However, no research to date has used a multipronged assessment approach necessary to investigate whether and how affective congruence typically relates to empathy (i.e., perception of others' affect, self-reported affect, and self-reported empathy during interpersonal interactions). Using multilevel response surface analysis and ecological momentary assessment, we investigated relations between congruence of perceived affect and self-reported empathy during social interactions in a large sample of adults (N = 526; total interactions = 21,521; Mdn = 38 interactions per person). Data were collected in spring 2023. We found that while self-reported empathy is generally higher when there is congruence of perceived affect, empathy is highest when there is congruence in high positive affect. Further, people are least empathetic when they feel emotionally worse than they perceive the other person is feeling. These findings provide novel insights into the empathic processes. (PsycInfo Database Record (c) 2025 APA, all rights reserved).