Correlates of STI testing among vocational school students in the Netherlands

BMC Public Health

Table 2 Scales and items used to measure (psychosocial) correlates of STI testing (n = 501)

Determinant (range)	No. of items	Internal consistency (a)	Total mean Score N = 501	SD	Boys Mean score N = 281	SD	Girls Mean score N = 220	SD
Intention to test *	2	0.75	0.10	1.01	0.01	1.03	0.21	0.99
Attitude toward testing **	4	0.82	0.44	0.92	0.31	0.90	0.60	0.92
Advantages of testing ***	10	0.83	0.79	0.67	0.68	0.76	0.92	0.50
Disadvantages of testing ***	7	0.71	-0.19	0.70	0.08	0.75	0.32	0.62
Injunctive norm - friends and parents **	4	0.71	0.09	0.81	0.00	0.80	0.21	0.81
Support - friends and parents **	4	0.73	0.71	0.79	0.63	0.84	0.81	0.71
Test behavior - partner ***	1		-0.26	1.02	-0.31	0.89	-0.21	1.18
Injunctive norm - partner *	1		-0.14	0.90	-0.06	0.76	-0.23	1.04
Support - partner	2	0.69	0.62	0.86	0.43	0.77	0.87	0.92
Descriptive norm - friends	1		-0.34	1.03	-0.40	1.04	-0.27	1.00
Self efficacy ***	8	0.86	0.08	0.79	0.22	0.79	-0.11	0.74
Perceived susceptibility ***	5	0.88	0.88	0.82	0.67	0.87	1.15	0.67
Perceived severity	2	0.89	1.79	0.57	1.75	0.65	1.83	0.45
Perceived shame ***	5	0.86	0.45	0.95	0.23	0.96	0.73	0.86
Perceived stigma	6	0.84	-0.21	0.86	-0.22	0.86	-0.20	0.86
Knowledge ***	10	0.76	7.23	2.50	6.72	2.66	7.87	2.1
Test site characteristics **	8	0.80	0.43	0.70	0.34	0.73	0.54	0.64

Note: Differences in scores between boys and girls were tested using independent sample t-tests by gender
* p < .05 (for gender difference); ** p < .01 (for gender difference); *** p < .001 (for gender difference); all items were measured on scales ranging from -2 to +2 (fully disagree/certainly not to fully agree/certainly) except for knowledge that was measured with a range of 0 to 10 (numbers represent number of right answers).

ISSN: 1471-2458