Retention of emergent Korean vocabulary following foreign tact training and overlearning

Overlearning refers to the repeated practice of material beyond initial mastery (Dougherty & Johnston, 1996; Shibata et al., 2017). In this preliminary study, we evaluated the effects of overlearning on the retention of emergent intraverbal Korean vocabulary with five adults. The participants completed two training conditions (regular training and overlearning) involving tacting visual stimuli in Korean. In the overlearning condition, participants were set additional fluency criteria and continued to practice beyond the initial accuracy mastery criterion. Both conditions generated high levels of emergent intraverbal responding post-training; however, data indicated that retention of emergent relations was greater following overlearning.