  This paper introduces CORAE, a novel web-based open-source tool for
COntinuous Retrospective Affect Evaluation, designed to capture continuous
affect data about interpersonal perceptions in dyadic interactions. Grounded in
behavioral ecology perspectives of emotion, this approach replaces valence as
the relevant rating dimension with approach and withdrawal, reflecting the
degree to which behavior is perceived as increasing or decreasing social
distance. We conducted a study to experimentally validate the efficacy of our
platform with 24 participants. The tool's effectiveness was tested in the
context of dyadic negotiation, revealing insights about how interpersonal
dynamics evolve over time. We find that the continuous affect rating method is
consistent with individuals' perception of the overall interaction. This paper
contributes to the growing body of research on affective computing and offers a
valuable tool for researchers interested in investigating the temporal dynamics
of affect and emotion in social interactions.
