Table 2

Floor and ceiling effects (percentage of respondents with minimum/maximum scale scores) for each item of the BrQ

No of Item
Floor effect
Ceiling effect

1
1 (3.58%)
2 (7.14%)
2
0 (0.00%)
2 (7.14%)
3
2 (7.14%)
0 (0.00%)
4
2 (7.14%)
1 (3.58%)
5
3 (10.71%)
0 (0.00%)
6
1 (3.58%)
2 (7.14%)
7
1 (3.58%)
1 (3.58%)
8
0 (0.00%)
2 (7.14%)
9
1 (3.58%)
2 (7.14%)
10
1 (3.58%)
1 (3.58%)
11
1 (3.58%)
1 (3.58%)
12
1 (3.58%)
0 (0.00%)
13
0 (0.00%)
2 (7.14%)
14
0 (0.00%)
3 (10.71%)
15
1 (3.58%)
1 (3.58%)
16
1 (3.58%)
0 (0.00%)
17
0 (0.00%)
0 (0.00%)
18
0 (0.00%)
0 (0.00%)
19
0 (0.00%)
5 (17.86%)
20
1 (3.58%)
4 (14.29%)
21
0 (0.00%)
3 (10.71%)
22
0 (0.00%)
4 (14.29%)
23
1 (3.58%)
3 (10.71%)
24
1 (3.58%)
3 (10.71%)
25
0 (0.00%)
0 (0.00%)
26
0 (0.00%)
0 (0.00%)
27
1 (3.58%)
2 (7.14%)
28
1 (3.58%)
3 (10.71%)
29
1 (3.58%)
4 (14.29%)
30
1 (3.58%)
3 (10.71%)
31
1 (3.58%)
5 (17.86%)
32
0 (0.00%)
4 (14.29%)
33
1 (3.58%)
3 (10.71%)
34
2 (7.14%)
1 (3.58%)

Vasiliadis et al. Scoliosis 2006 1:7   doi:10.1186/1748-7161-1-7