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Table 6 MIIC, Cronbach’s α coefficient and test-retest reliability of each factor and the whole BARSHSS-CV

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

  1. Factor 1, mild respiratory system symptom; Factor 2, severe system respiratory symptom; Factor 3, susceptibility factor. MIIC, mean inter-item correlation coefficients