Table 2. Average score of the pre- and post-test groups.

Data have been presented as mean ± standard deviation

Both p-values show significance

Groups	Below average	Average	Above average	Student t-value	p-Value
Pre-test	3 ± 1.5	14.5 ± 2	0 ± 0	15.6	0.0001
Post-test	0 ± 0	18.2 ± 1.5	24.5 ± 3.6	6.88	0.0001