Table 2.

Data restructure sample size for each session.

Session	Valid N	Missing N
1	44	0
2	37	7
3	32	12
4	26	18
5	20	24
6	17	27
7	14	30
8	11	33
9	10	34
10	9	35
11	8	36
12	8	36
13	4	40
14	2	42
15	2	42
16	2	42
17	1	43
18	1	43
19	1	43
20	1	43