Table 1

 Mastery criterion means and F ratios

Mastery criterionExperimental(N = 5)Control(N = 5)F ratio(N = 5)
*p<0.01.
**p<0.05.
Trials to 4 consecutive9.618.62.16
Days to 4 consecutive17.022.80.46
Trials to 7 of 828.443.83.25
Days to 7 of 842.857.81.41
Trials to 9 of 1030.059.838.30*
Days to 9 of 1045.677.09.20**