Table 2.

Score distributions, skewness, floor and ceiling effects and internal consistency for EHP-30

Subscale of EHP-30	Median	25th percentile	75th percentile	Coefficient of skewness	Floor effect	Ceiling effect	Cronbachs alpha
Pain	34	16	57	0.03	0.08	0.00	0.96
Control & Powerlessness	58	33	75	−0.22	0.03	0.02	0.92
Emotional Wellbeing	42	29	62	−0.08	0.04	0.00	0.91
Social Support	50	25	69	−0.18	0.09	0.02	0.88
Self-Image	50	25	67	−0.05	0.09	0.02	0.83
Total	44	26	60	−0.15	0.01	0.00	0.97