IRRODL is carrying a research article this month written by researchers in South Korea and Vietnam into the impact f diversity in video lectures. This study investigated the effects of varying levels of instructional media delivered to students within a flipped scientific writing course to investigate the relationship between higher levels of media diversity and student performance. Results showed that more diversity led to lower levels of performance. It was also found that higher levels of media diversity correlated with higher levels of students’ scanning between different forms of media, possibly contributing to the lower levels of performance. The implications of these results provide insight into the optimal level of media diversity, and on student behavior that can affect learning.
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