Investigating How Collaborative Conversational Agents Influence the Relationship of Affective and Cognitive Engagement in Student Dialogues. - Elissavet Papageorgiou; Pantelis M. Papadopoulos; Ahsen Çini; Athanasios Stoidis; Adelson de Araujo; Maryam Amir Haeri (AIED (5), 2026)