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Table 5 Descriptive statistics, Cronbach's alpha and intraclass correlation coefficient of the PAQ-DP subscales

From: Development and psychometric properties of a belief-based Physical Activity Questionnaire for Diabetic Patients (PAQ-DP)

  No of items Mean (SD)* Skewness Cronbach' alpha ICC**
Instrumental attitude 4 88.80 (11.80) -1.70 0.82 0.79
Affective attitude 3 79.60 (13.70) -0.80 0.54 0.56
Subjective norm 4 75.40 (16.50) -0.70 0.76 0.92
Perceived behavioral control 2 58.10 (25.70) -0.40 0.71 0.78
Self-identity 4 49.50 (20.20) 0.00 0.71 0.73
Intention 2 72 (16.50) -0.40 0.60 0.40
  1. *Scores range from 0 to 100. Higher scores indicate better perceptions about physical activity.
  2. **Intraclass Correlation Coefficient