S. Shyam Sundar|Saraswathi Bellur|Jeeyun Oh|Haiyan Jia|Hyang Sook Kim
Theoretical Importance of Contingency in Human-Computer Interaction
Pennsylvania State University|Sungkyunkwan University|University of Connecticut|Robert Morris University|Pennsylvania State University|St. Norbert College
critical determinant message interactivity presence contingency messages receive contingent upon messages send leading threaded loop interdependent messages conversational ideal easily achieved facetoface computermediated communications cmc imbuing contingency humancomputer interaction hci challenge propose two interface featuresinteraction history synchronous chatfor increasing perceptions contingency therefore user engagement test fivecondition betweenparticipants experiment n 110 movie search site data suggest interaction history indeed heighten perceptions contingency dialogue perceived less interactive chatting however chat function appreciably increase perceived contingency user engagement shown mediate effects message interactivity attitudes toward site theoretical implications interactivity research practical implications interaction design discussed