Effects of the amount of practice and time interval between practice sessions on the retention of internal models
Fig 6
Savings in the experimental groups.
The vertical axis represents savings. The savings of the 20-session groups (Group 1, Group 3) was greater than that of the 10-session groups (Group 2, Group 4). A two-way ANOVA with the time interval (24 h, 48 h) and the amount of training on Day 1 (20 sessions, 10 sessions) as between-subject factors revealed the main effect of the amount of training (F(1,36) = 12.89, p < 0.001, ηp2 = 0.26). There was no significant interaction. The savings values marked with asterisks were significantly higher in the 20-session practice groups than in the 10-session practice groups (all ps < .001).