Skip to main content

Table 2 Internal consistency (Cronbach alpha) and item-test correlations between mean domain scores and the summary index score of the PDQ-39 (n = 81).

From: Validation of an Estonian version of the Parkinson's Disease Questionnaire (PDQ-39)

Domain

Cronbach alpha

Item-test correlation

Mobility

0.85

0.69

Activities of daily living

0.85

0.72

Emotional well-being

0.85

0.83

Stigma

0.86

0.72

Social support

0.84

0.68

Cognition

0.82

0.67

Communication

0.83

0.56

Bodily discomfort

0.81

0.69

  1. All the coefficients were significant (p < 0.05).