TABLE 1.

Questionnaire items designed based on Cognitive-Experiential Self-Theory (CEST) and Common Sense Model of Risk Perception (CSM).

Variables	Connotations	Item	Theoretical sources
Emotional feelings	Emotional response to the infection of COVID-19 (Zhong et al., 2021)	Item 6 How likely do you think you are to contract COVID-19?	CEST Intuitive feelings
		Item 7 Are you worried about contracting COVID-19?	CEST Intuitive feelings
		Item 8 Do you think you are susceptible to COVID-19?	CEST Intuitive feelings
Cognitive judgment	Judgment of vulnerability to infection (Zanin et al., 2020)	Item 9 Are you sure you won’t infect with COVID-19?	CEST Cognitive judgment
		Item 10 Do you think that you are at risk of contracting COVID-19, no matter how small the probability is?	CEST Cognitive judgment
		Item 11 What do you think your probability is of contracting COVID-19?	CEST Cognitive judgment
Mental representation of unusual severity	Constantly reminded of COVID-19 (Kuang et al., 2020)	Item 12 Is it hard for you to imagine yourself infected with COVID-19?	CSM Mental representation
		Item 13 Have you ever assumed you were infected with COVID-19?	CSM Mental representation
		Item 14 Have you ever assumed that a family member has been infected with COVID-19?	CSM Mental representation