. The effect of functional roles on group efficiency: Using multilevel modeling and content analysis to investigate computer-supported collaboration in small groups. Small Group Research, 35, Netherlands. E-mail: jan-willem.strijbos@ou.nlThe effect of functional roles on group efficiency 3 3 Abstract The usefulness of 'roles' as a pedagogical approach to support small group performance can be often read, however, their effect is rarely empirically assessed. Roles promote cohesion and responsibility and decrease so-called 'process losses' caused by coordination demands. In addition, roles can increase awareness of intra-group interaction. In this article, the effect of functional roles on group performance, efficiency and collaboration during computer-supported collaborative learning (CSCL) was investigated with questionnaires and quantitative content analysis of e-mail communication. A comparison of thirty-three questionnaire observations, distributed over ten groups in two research conditions: role (n = 5, N = 14) and non-role (n = 5, N = 19), revealed no main effect for performance (grade). A latent variable was interpreted as 'perceived group efficiency' (PGE). Multilevel modelling (MLM) yielded a positive marginal effect of PGE. Groups in the role condition appear to be more aware of their efficiency, compared to groups in the 'non-role' condition, regardless whether the group performs well or poor. Content analysis reveals that students in the role condition contribute more 'task content' focussed statements. This is, however, not as hypothesised due to the premise that roles decrease coordination and thus increase content focused statements; in fact, roles appear to stimulate coordination and simultaneously the amount of 'task content' focussed statements increases.The effect of functional roles on group efficiency 4 4 The effect of functional roles on group efficiency: Using multilevel modelling and content analysis to investigate computer-supported collaboration in small groups.Since the 1970s small group dynamics have been intensively studied in educational contexts.Cooperative learning research focused initially on face-to-face cooperation at the elementary school level, but was gradually extended to college and higher education settings. Design of cooperative learning pedagogy focused on promoting group cohesion and group responsibility to increase promotive intra-group interaction. Due to the technology push in the 1980s, resulting Nevertheless, several researchers also identify large variations in the quality of interaction and learning outcomes (Häkkinen, Järvelä, & Byman, 2001; Lehtinen, Hakkarainen, Lipponen, Rahikainen, & Muukkonen, 1999). On the one hand, these are caused by differencesThe effect of functional roles on group efficiency 5 5 in length of studies, technology used, group size, as well as, differences in research methodology and the unit of analysis (Lipponen, 2001). On the other hand, the outcome of small group collaboration is mediated by the quality of group processes (Shaw, 19...