From: Brief adult respiratory system health status scale-community version (BARSHSS-CV): developing and evaluating the reliability and validity
Factor
Number of Items
MIIC
Cronbach’s α
Test-retest reliability
Factor 1
4
0.634
0.873
0.931
Factor 2
9
0.656
0.945
0.944
Factor 3
7
0.511
0.878
0.977
BARSHSS-CV
20
0.500
0.951
0.963