Appendix E

data: knowledge gain: CAI group

[ This data is summarized in Table 2. ]

Student number	Pretest score	Posttest score	Change of score
1	70	80	10
2	58	65	7
3	68	88	20
4	78	98	20
7	50	60	10
8	63	85	22
9	70	85	15
12	83	93	10
15	83	98	15
19	43	60	17
21	40	85	45
24	75	98	23
27	25	83	58
28	63	63	0
29	30	63	33
31	95	100	5
33	68	90	22
34	75	90	15
35	55	83	28
36	53	90	37
43	80	95	15
45	20	73	53
48	73	90	17
52	68	80	12
54	45	98	53
61	85	95	10
62	58	75	17
64	60	78	18
65	45	85	40