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Table 3 Psychometric properties of the newly adapted stigma scale

From: Assessment of stigma in patients with cystic fibrosis

Validity

Correlations

  

 CES-D (n, r, p-value)

n = 44, r = 0.529, p < .001

  

 GAD-7 (n, r, p-value)

n = 39, r = 0.371, p = .014

  

 CF symptom (n, r, p-value)

n = 44, r = 0.479, p = .001

  

 SF- 12 (n, r, p-value)

n = 44, r = -.454, p = .002

  

 CF-specific QOL (n, r, p-value)

n = 39, r = -.645, p < .001

  

Reliability

   

 Internal consistency (α)

0.79

  

 Mean Inter-item correlation (mean, N)

0.30 (44)

  

 Three month test-retest (r, p-value)

r = 0.78; p < .001

  
 

Baseline

Follow-up

p-value

 Mean differences between response items (mean, SD)

16.6 (4.5)

16.9 (5.1)

0.3

  1. Center for Epidemiologic Study-Depression scale (CES-D).
  2. Cystic Fibrosis symptom scale (CF symptom).
  3. General Anxiety Disorder -7 scale (GAD-7).
  4. Short Form (SF)-12.
  5. Cystic Fibrosis-specific Quality of Life (CF-specific QOL).