Clinical and Translational Research
Copyright ©The Author(s) 2021.
World J Gastroenterol. Oct 21, 2021; 27(39): 6647-6658
Published online Oct 21, 2021. doi: 10.3748/wjg.v27.i39.6647
Table 3 Psychometric characteristics of perceived stigma scale and its sub-scales

Overall
Significant others
Healthcare professionals
Median score0.45 (0.20-0.85)0.70 (0.30-1.40)0.10 (0-0.40)
Data quality
Missing items0 (0%)0 (0%)0 (0%)
Floor effect9 (7.1%)11 (8.7%)53 (42.1%)
Ceiling effect0 (0%)0 (0%)0 (0%)
Scaling assumption
Internal consistency
Item19/20 (95.0%)10/10 (100%)10/10 (100%)
Reliability (Cronbach alpha)0.870.830.81
Discriminant validity-30.0%30.0%
Test-retest0.99 (0.99-1.00)0.999 (0.99-1.00)0.99 (0.97-0.99)
Evaluationa