Table 1.

Correlation coefficient, mean, SD, and AVE (N=242)

Variables	M	SD	The Cronbach’s α	AVE	1	2	3	4
1. Autonomy	5.56	1.27	0.89	0.71	0.84
2. Optimism	4.17	0.70	0.87	0.67	0.36**	0.82
3. WE	4.83	1.01	0.92	0.50	0.49**	0.54**	0.71
4. OCB	5.01	0.78	0.95	0.63	0.35**	0.47**	0.60**	0.79

**Significant at the 0.01 level; the square root of AVE values are bolded.

AVE, average variance extracted; OCB, organisational citizenship behaviour; WE, work engagement.