Interactional competence has been variously defined as turn-taking ability, paralinguistic features of communication such as eye contact, gesture, and gesticulation, and listener responses. In existing assessment systems such as the oral proficiency interview (OPI), interactional competence is only rarely explicitly factored into the holistic…

Speaking tasks involving peer-to-peer candidate interaction are increasingly being incorporated into language proficiency assessments, in both large-scale international testing contexts, and in smaller-scale, for example course-related, ones. This growth in the popularity and use of paired and group orals has stimulated research, particularly into…