Table 1. Example of a hypothetical data set.

Level-1 id	Level-2 id	Individual responses	Self-included measure	Self-excluded measure
1	1	7	5.50	5.00
2	1	4	5.50	6.00
3	1	5	5.50	5.67
4	1	6	5.50	5.33
5	2	4	4.60	4.75
6	2	3	4.60	5.00
7	2	3	4.60	5.00
8	2	8	4.60	3.75
9	2	5	4.60	4.50
10	3	3	6.75	8.00
11	3	7	6.75	6.67
12	3	9	6.75	6.00
13	3	8	6.75	6.33
:	:	:	:	: