Group Pretest Posttest Gain
1	80.5	82.2	1.7
1	84.9	85.6	.7
1	81.5	81.4	-.1
1	82.6	81.9	-.7
1	79.9	76.4	-3.5
1	88.7	103.6	14.9
1	94.9	98.4	3.5
1	76.3	93.4	17.1
1	81.0	73.4	-7.6
1	80.5	82.1	1.6
1	85.0	96.7	11.7
1	89.2	95.3	6.1
1	81.3	82.4	1.1
1	76.5	72.5	-4.0
1	70.0	90.9	20.9
1	80.4	71.3	-9.1
1	83.3	85.4	2.1
1	83.0	81.6	-1.4
1	87.7	89.1	1.4
1	84.2	83.9	-.3
1	86.4	82.7	-3.7
1	76.5	75.7	-.8
1	80.2	82.6	2.4
1	87.8	100.4	12.6
1	83.3	85.2	1.9
1	79.7	83.6	3.9
1	84.5	84.6	.1
1	80.8	96.2	15.4
1	87.4	86.7	-.7
2	80.7	80.2	-.5
2	89.4	80.1	-9.3
2	91.8	86.4	-5.4
2	74.0	86.3	12.3
2	78.1	76.1	-2.0
2	88.3	78.1	-10.2
2	87.3	75.1	-12.2
2	75.1	86.7	11.6
2	80.6	73.5	-7.1
2	78.4	84.6	6.2
2	77.6	77.4	-0.2
2	88.7	79.5	-9.2
2	81.3	89.6	8.3
2	78.1	81.4	3.3
2	70.5	81.8	11.3
2	77.3	77.3	0.0
2	85.2	84.2	-1.0
2	86.0	75.4	-10.6
2	84.1	79.5	-4.6
2	79.7	73.0	-6.7
2	85.5	88.3	2.8
2	84.4	84.7	0.3
2	79.6	81.4	1.8
2	77.5	81.2	3.7
2	72.3	88.2	15.9
2	89.0	78.8	-10.2
3	83.8	95.2	11.4
3	83.3	94.3	11.0
3	86.0	91.5	5.5
3	82.5	91.9	9.4
3	86.7	100.3	13.6
3	79.6	76.7	-2.9
3	76.9	76.8	-0.1
3	94.2	101.6	7.4
3	73.4	94.9	21.5
3	80.5	75.2	-5.3
3	81.6	77.8	-3.8
3	82.1	95.5	13.4
3	77.6	90.7	13.1
3	83.5	92.5	9.0
3	89.9	93.8	3.9
3	86.0	91.7	5.7
3	87.3	98.0	10.7