| |
Question
5.1
The table
below shows self-reported pain levels for TMD patients recruited
into an RCT that required a pain level of at least 5.0 (on a 10-point
VAS scale) for entry. With the mean pain level for the 10 patients
at 6.8, how many patients might have lower pain levels on repeated
measurement, by chance alone (i.e., regression to the mean)?
| Subject
#
| Pain
Level
(0 -10 VAS)
|
|---|
1
| 5.0
|
2
| 9.2
|
3
| 6.0
|
4
| 5.5
|
5
| 8.3
|
6
| 7.5
|
7
| 6.5
|
8
| 5.0
|
9
| 8.7
|
10
| 6.0
|
|
|