Outcome Variables

Grade

n

Pre-survey

M (SD)

Post-Survey

M (SD)

Mean Difference

M (SD)

p-value

Nutritional knowledge score

(Max Points = 20)

3rd

4th

5th

32

56

79

14.53 (2.03)

14.94 (2.51)

15.36 (2.63)

16.31 (2.77)

16.79 (2.43)

16.74 (3.16)

1.78 (2.35)

1.82 (2.68)

1.37 (3.23)

0.000*

0.000*

0.000*

Food Choice score

(Max Points = 14)

3rd

4th

5th

32

56

79

11.93 (1.86)

12.28 (1.55)

12.43 (1.89)

12.59 (1.10)

12.85 (1.47)

13.07 (1.11)

0.65 (2.00)

0.57 (1.91)

0.64 (2.06)

0.074

0.030*

0.007*