Table 6.

Overview and descriptions of the measures in wave 2.

Category	Measure	Items	Description
Information processing	COVID-19 Knowledge	32	Knowledge about COVID-19 in terms of accuracy and confidence
	Conspiracy Rejection	8	COVID-19-related conspiracy rejections in terms of accuracy and confidence
Media use	Frequency per source	18	The extent to which different types of sources are used to acquire information about COVID-19 (e.g., news sites, social networking sites, friends/family)
Behaviour	Adherence to measures	1	The degree of adherence to government-imposed measures against COVID-19
	Perceived importance of sources	8	The perceived importance of different sources and organizations with respect to acquiring new information and guidelines