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Table 3 Internal consistency reliability and test retest reliability statistics

From: Parental–Caregivers Perceptions Questionnaire (P-CPQ): translation and evaluation of psychometric properties of the French version of the questionnaire

P-CPQ Number of Items Cronbach’s alpha (n = 142) Intraclass Correlation Coefficient (n = 85)
    ICC 95% CI
Total scale 33 0.85 0.88 [0.82–0.92]
Subscales
 Oral Symptom (OS) 6 0.81 0.81 [0.71–0.88]
 Functional Limitation (FL) 8 0.77 0.76 [0.64–0.84]
 Emotional Well-Being (EWB) 7 0.79 0.79 [0.68–0.86]
 Social Well-Being (SWB) 10 0.77 0.86 [0.79–0.91]
  1. ICC intraclass correlation