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Table 1 Cronbach alpha, Kaiser-Meyer-Olkin (KMO) measure of sampling adequacy and Bartlett’s test of sphericity for the intrapersonal, sociocultural and physical environmental/policy subscales of the Y-PASS questionnaires

From: Development and psychometric properties of the Y-PASS questionnaire to assess correlates of lunchtime and after-school physical activity in children

Subscale Cronbach alpha KMO Bartlett’s test
Lunchtime Y-PASS    
  Intrapersonal 0.84 0.84 1539 p < 0.000
  Sociocultural 0.61 0.65 227 p < 0.000
  Physical environmental/policy 0.70 0.75 438 p < 0.000
After-school Y-PASS    
  Intrapersonal 0.88 0.84 4356 p < 0.000
  Sociocultural 0.77 0.74 1765 p < 0.000
  Physical environmental/policy 0.81 0.70 2070 p < 0.000