Background: Research regarding teaching expectancy has been mostly conducted in research laboratories with college students. These studies provide insufficient evidence regarding its effect on learners' delayed comprehension. Moreover, the relative superiority of teaching a peer face to face compared to teaching an imagined peer lacks empirical…

Background: The worked example effect in cognitive load theory suggests that providing worked examples first followed by solving similar problems would facilitate students' learning. Using problem solving-worked example sequence is another way of implementing example-based instruction. Although research has demonstrated the superiority of worked…