. 2021 Jul 14;18(14):7493. doi: 10.3390/ijerph18147493

Table 3.

Results of the exploratory factor analysis.

Factor	Item	Factor Loading ^a	Eigenvalue	VE (%)	CVE (%)	Cronbach’s α
Knowledge subscale						0.532 ^b
Nature of the disease	1	0.781	4.219	12.409	12.409
Nature of the disease	2	0.534
Signs and symptoms	3	0.744	2.693	7.922	20.331
Signs and symptoms	4	0.651
Diagnosis	5	0.657	2.545	7.485	27.816
Diagnosis	6	0.854
Medical management	7	0.554	2.235	6.575	34.391
	8	0.677
	9	0.742
PUI management and quarantine	10	0.751	1.678	4.963	39.326
PUI management and quarantine	11	0.823
Precautionary strategy	12	0.851	1.585	4.663	43.989
Precautionary strategy	13	0.820
Attitudes subscale						0.720
Beliefs about COVID-19 prevention	14	0.897	1.541	4.531	48.521
	15	0.963
	16	0.901
Beliefs about healthcare provider role	17	0.496	1.481	4.355	52.875
	18	0.810
	19	0.731
	20	0.701
Practices subscale						0.851
Personal hygiene practices	21	0.716	1.400	4.117	56.992
	22	0.748
	23	0.593
	24	0.605
	25	0.561
Restricting behavior	26	0.587	1.296	3.811	60.803
	27	0.512
	28	0.778
	29	0.781
	30	0.651
	31	0.680
	32	0.517
	33	0.621
	34	0.694

VE, variance explained; CVE, cumulative variance explained; PUI, person under investigation. ^a Extraction method: principal component analysis. Rotation method: varimax with Kaiser normalization. Factor loading cut-off: >0.40. ^b Kuder-Richardson-20 coefficient.