Two-way repeated-measures ANOVA of the knowledge score
revealed a statistically significant Group 9 Time interaction
(F = 3068, p < 0001). After one-way repeated-measures
ANOVA, we found the knowledge score enhanced over time
in these two study groups, and there was significant
difference between the experimental group (F = 20744,
p < 0001) and the control group (F = 3798, p < 0001).
As the data suggest, the experimental group displayed mean
improvements of +1238 points and +1375 in the total
score of knowledge at months 3 and 6, respectively, and
subjects in the control group also exhibited increased total
score (+552 and +600), but post hoc t-test revealed
that there were statistically significant differences between