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Table 4 The difference values in pre-test and post-test

From: A serious game for improving the decision making skills and knowledge levels of Turkish football referees according to the laws of the game

	Differences in pre-test	Differences in post-test
1	2	10
2	2	4
3	−2	8
4	2	6
5	2	8
6	2	12
7	−4	4
8	−2	6
9	−4	2
10	−2	8
11	−2	10
12	−2	−8
13	−4	−4
14	2	6
15	2	10
16	4	−2
17	−2	22
18	−4	8
19	−6	8
20		2
21		2
22		−2
23		−10
24
25
26
27

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