The interactive virtual audience condition producing nonverbal feedback was not significantly better than the control condition after the investigated minimal training of only two short presentations.
we found using participants' questionnaires that the interactive virtual audience was perceived as more engaging (µ IV A = 4.50, µ N on−IV A = 3.44; t(30) = 0.86, p = 0.001, g = 1.211) and challenging (µ IV A = 2.94, µ N on−IV A = 2.00; t(28) = 1.02, p = 0.025, g = 0.801) than the control condition, which could prove pivotal in the long run and keep the learner engaged and present a more challenging task.