Survey on determinants of intention to reduce nasopharyngeal cancer risk: an application of the theory of planned behavior

Table 3 Discriminant validity of constructs

	Perceived barriers	Intention	Perceived behavioral control	Perceived risk	Subjective norm	Perceived benefits	Knowledge	Past behavior	Perceived severity
Perceived barriers	0.742
Intention	−0.251	0.843
Perceived behavioral control	−0.435	0.285	0.814
Perceived risk	−0.088	0.441	−0.123	0.912
Subjective norm	−0.164	0.335	0.107	0.514	0.858
Perceived benefit	−0.341	0.374	0.456	0.153	0.315	0.866
Knowledge	−0.273	0.374	0.386	0.236	0.405	0.624	0.781
Past behavior	−0.441	0.200	0.584	−0.075	0.160	0.391	0.312	0.821
Perceived severity	−0.361	0.465	0.384	0.295	0.363	0.679	0.609	0.298	0.795

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