Bay-Wise Pre/Post Test Scores

# answered correctly

# answered correctly

Improvement from pre- to post-test

0221

23

28

+5

0608

18

1010

18

30

+12

1262

13

24

+11

2220

13

20

+7

4343

10

17

+7

4872

9

24

+15

5285

13

24

+11

5412

21

24

+3

6441

10

28

+18

6463

14

29

+15

7036

17

28

+11

7827

21

30

+9

9005

14

Total of Raw Scores

214

306

124

Average

15.28

25.5

10.3

Number of Scores Used

14

12

12