Characterizing the nature of students' affective and emotional states and detecting them is of fundamental importance in online course platforms. In this paper, we study this problem by using discussion forum posts derived from large open online courses. We find that posts identified as encoding confusion are actually manifestations of different…

A majority of U.S. adolescents at least occasionally communicate on the Internet with unknown peers. This study tested the hypothesis that online communication with an unknown peer facilitates recovery from the acute aversive effects of social exclusion and examined whether this benefit may be greater for adolescents compared with young adults. A…

Accurately detecting emotional expression in women with primary breast cancer participating in support groups may be important for therapists and researchers. In 2 small studies (N = 20 and N = 16), the authors examined whether video coding, human text coding, and automated text analysis provided consistent estimates of the level of emotional…