Validity and reliability analysis of the Chinese version of planned happenstance career inventory based on mathematical statistics

Correlation between the score of each item and the total score (n = 335)

Item	r	Item	r	Item	r	Item	r	Item	r
1	0.311**	6	0.335**	11	0.224**	16	.430**	21	0.347**
2	0.361**	7	0.371**	12	0.280**	17	0.474**	22	0.223**
3	0.110*	8	0.308**	13	0.372**	18	0.496**	23	0.421**
4	0.355**	9	0.386**	14	0.297**	19	0.415**	24	0.399**
5	0.287**	10	0.345**	15	0.379**	20	0.386**	25	0.394**

Correlation between the Chinese version of PHCI and efficacy targets (n = 568)

Correlation	1	2	3	4	5	6	7	8
Factor 1	1
Factor 2	0.722**	1
Factor 3	0.776**	0.706**	1
Factor 4	0.309**	0.196**	0.298**	1
Factor 5	0.399**	0.395**	0.386**	0.356**	1
The Chinese version of PHCI	0.879**	0.847**	0.846**	0.497**	0.636**	1
ODCS	0.157**	0.074*	0.115**	0.426**	0.321**	0.256**	1
CAAS-China	0.711**	0.682**	0.639**	0.186**	0.360**	0.723**	0.142**	1

CFA Model fitting index of the Chinese version of PHCI (n = 568)

Model	χ2/d f	GFI	AGFI	CFI	IFI	TLI	RMSEA	SRMR
Revised 5 factors (20 items)	3.135	0.925	0.901	0.926	0.926	0.912	0.056	0.062
5 factors (25 items)	4.975	0.826	0.787	0.832	0.833	0.810	0.084	0.087

Convergence validity test table of the Chinese version of PHCI

Scale dimension	Factor loading	AVE	CR
Factor 1	0.682–0.823	0.58	0.87
Factor 2	0.704–0.812	0.60	0.88
Factor 3	0.704–0.833	0.61	0.86
Factor 4	0.700–0.838	0.60	0.82
Factor 5	0.748–0.828	0.63	0.84
Scale as a whole	0.682–0.838	0.60	0.97

The Chinese version of PHCI factor items and loads (n = 327)

	Factor 1 adventure	Factor 2 persistence	Factor 3 optimism	Factor 4 flexibility	Factor 5 curiosity
C20	0.830
C19	0.809
C16	0.763
C23	0.715
C21	0.676
C14		0.788
C10		0.744
C4		0.728
C6		0.709
C12		0.641
C18			0.799
C13			0.751
C17			0.719
C15			0.645
C8				0.847
C24				0.776
C9				0.679
C2					0.813
C1					0.761
C7					0.687

Reliability analysis table of the Chinese version of PHCI

	Total table	Factor 1	Factor 2	Factor 3	Factor 4	Factor 5
Cronbach's alpha	0.862	0.815	0.810	0.762	0.679	0.689
Test-retest reliability	0.871	0.766	0.798	0.750	0.698	0.726
Split-half reliability	0.733	0.726	0.793	0.748	0.698	0.681