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Robert M. Bernard; Philip C. Abrami; Eugene Borokhovski; C Anne Wade; Rana M. Tamim; Michael A. Surkes; Edward Clement Bethel
Review of Educational Research Vol. 79, No. 3 (2009) pp. 1243–1289
This meta-analysis of the experimental literature of distance education (DE) compares different types of interaction treatments (ITs) with other DE instructional treatments. ITs are the instructional and/or media conditions designed into DE courses, ...