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

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

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