to investigate the effect of massed and distributed collaborative and non-collaborative presentation on l2 learners’ comprehension and production of lexical collocations, 105 participants at takestan islamic azad university in 4 groups were assigned to four different treatment conditions (collaborative-massed; collaborative-distributed; noncollaborative-massed; and noncollaborative-distributed ...

Background Collaboration between researchers and knowledge users is increasingly promoted because it could enhance more evidence-based decision-making and practice. These complex relationships differ in form, in the particular goals they are trying to achieve, and in whom they bring together. Although much is understood about why partnerships form, relatively little is known about how collabora...