Table 1 |.

Overview of pre-registered hypotheses and models

Model	Hypotheses
Threat, Lockdown, and Mental Health Model	Personal threat will be predicted by the perceived risk of contracting the virus, which in turn is predicted by contagion rates in one’s environment. Finances will further negatively impact threat.
	Levels of social connectedness are predicted by the social actions one takes; levels of sense of control are predicted by actions to regain control (at the individual or governmental level).
	Days in isolation will have a quadratic effect on social connectedness and perceived sense of control: initially, levels will be high as isolation does not yet take grip, and later on they will be low as individuals will have adapted to isolation.
Antecedents of Control Model	A perceived sense of control is predicted by (a) frequency of behaviors taken to avoid contracting the virus, (b) communicating with close others, and (c) other types of coping behavior.
	In addition, sense of control is predicted by how often an individual consults information sources, and this relationship is moderated by the level of trust in these sources.
	A perceived sense of control is further predicted by the extent to which governments take actions to deal with the COVID-19 pandemic, and this relationship is moderated by the level of trust in the government.