Average score (pre-test)

Average score (post-test)

t

Sig

Experimental group

56.71

72.68

7.10

.000

Control group 1

54.83

64.46

7.12

.000

Control group 1 pre-test versus post-test

54.83

64.46

14.79

.000

Control group 2

-

62.91

7.25

000