TABLE 2.

Cronbach’s alpha, omega coefficient, mean inter-item correlation, and mean item-total correlation of different scales and subscales.

	Cronbach’s alpha	Omega coefficient	Mean inter- item correlation	Mean item- total correlation
Chinese Positive Youth Development Scale (CPYDS)
Bonding (BO, 3 items)	0.75	0.77	0.50	0.58
Resilience (RE, 3 items)	0.78	0.79	0.54	0.62
Social Competence (SC, 3 items)	0.85	0.85	0.65	0.71
Recognition for Positive Behavior (PB, 3 items)	0.76	0.76	0.51	0.59
Emotional Competence (EC, 3 items)	0.73	0.75	0.48	0.56
Cognitive Competence (CC, 3 items)	0.80	0.80	0.57	0.65
Behavioral Competence (BC, 3 items)	0.70	0.70	0.44	0.52
Moral Competence (MC, 3 items)	0.72	0.72	0.47	0.54
Self-Determination (SD, 3 items)	0.74	0.76	0.49	0.57
Self-Efficacy (SE, 2 items)	0.62	NA	0.45	0.45
Clear and Positive Identity (SI, 3 items)	0.77	0.77	0.53	0.61
Beliefs in the Future (BF, 3 items)	0.85	0.85	0.65	0.72
Prosocial Involvement (PI, 3 items)	0.79	0.81	0.55	0.64
Prosocial Norms (PN, 3 items)	0.70	0.72	0.44	0.52
Spirituality (SP, 3 items)	0.88	0.88	0.71	0.77
Life Satisfaction (LS, 5 items)	0.86	0.86	0.58	0.69
Academic Stress (AS, 2 items)	0.92	NA	0.86	0.86
Satisfaction with New Secondary School Curriculum (PNSC)
Fondness for and interest in junior curriculum (4 items)	0.95	0.95	0.83	0.88
Perceived benefits of junior curriculum (5 items)	0.95	0.95	0.80	0.86
Fondness for and interest in senior curriculum (4 items)	0.94	0.94	0.81	0.86
Perceived benefits of senior curriculum (5 items)	0.95	0.95	0.78	0.86

NA: omega coefficients cannot be calculated for a scale with 2 items.