"There is a broad consensus that a collaborative learning approach is effective for adult learners, since they can share their experiences and build knowledge together. However, because collaborative attitudes do not always develop spontaneously in a group, strategies and techniques are necessary to facilitate collaborative learning and help learners to achieve effective results".
Citation: Marzano, G., Ochoa-Siguencia, L. (2017). Online collaborative learning: the EsCAlADE training experiment, Proceedings of the International Scientific Conference “Challenges for high quality of adult education (Riga 30 May 2017), 125-134