From: The evaluation of synchronous and asynchronous online learning: student experience, learning outcomes, and cognitive load
Online module
Synchronous
Asynchronous
Cohen’s d
p value
Cognitive load
2.53
2.84
0.218
0.0001
Mental load
2.52
2.86
0.244
0.0005
Mental effort
2.548
2.79
0.173
0.0662