Pre-test

Mid-test

Post-test

M

SD

N

M

SD

N

M

SD

N

Four-year-old children

46.7

7.55

88

54.2

10.2

88

60.2

12.4

88

Five-year-old children

52.2

12.4

99

57.6

11.0

99

67.9

16.1

99

Total

49.6

10.7

187

56.0

10.7

187

64.3

15.0

187