Background:The effective implementation of government policies and measures for controlling the COVID-19 pandemic requires compliance from the public. This study aimed to examine cross-sectional and longitudinal associations of trust in government regarding COVID-19 control with the adoption of recommended health behaviours and prosocial behaviours, and potential determinants of trust in government during the pandemic.Methods: This study analysed data from the PsyCorona Survey, an international project on COVID-19 that included 23,733 participants from 23 countries (representative in age and gender distributions by country) at baseline survey and 7785 participants who also completed follow-up surveys. Specification curve analysis was used to examine concurrent associations between trust in government and self-reported behaviours. We further used structural equation model to explore potential determinants of trust in government. Multilevel linear regressions were used to examine associations between baseline trust and longitudinal behavioural changes.Results: Higher trust in government regarding COVID-19 control was significantly associated with higher adoption of health behaviours (handwashing, avoiding crowded space, self-quarantine) and prosocial behaviours in specification curve analyses (median standardised β = 0.173 and 0.229, p < 0.001). Government perceived as well organised, disseminating clear messages and knowledge on COVID-19, and perceived fairness were positively associated with trust in government (standardised β = 0.358, 0.230, 0.056, and 0.249, p < 0.01). Higher trust at baseline survey was significantly associated with lower rate of decline in health behaviours over time (p for interaction = 0.001). Conclusions:These results highlighted the importance of trust in government in the control of

Sociopsychological theorizing and research on collective action (e.g., social protests) has mushroomed over the last decade, studying a wide variety of groups, contexts, and cultures. Through a quantitative research synthesis of four motivations for collective action (1,235 effects from 403 samples; total N = 123,707), we summarize and synthesize this body of research into the dual chamber model, a comprehensive and potentially cross-cultural model of collective action. We aim to replicate previous meta-analytic conclusions (about identity, injustice, and efficacy) and break new theoretical ground by (a) integrating a fourth motivation (morality) into the very heart of the psychology of collective action, (b) extending these four motivations to advantaged group members acting in solidarity with the disadvantaged, and (c) integrating theoretically relevant structural (i.e., cultural and other contextual) constraints. Results substantiated the dual chamber model as all four motivations yielded unique, positive, medium-sized effects and interrelationships were positive (particularly among morality and identity, conceptualized as the dual chambers of the protester's beating heart). Meta-analytic structural equation modeling supported the added value of including morality. Moreover, findings confirmed that the strongest specific motivations were emotional injustice and politicized identification, while newly adding moral conviction to that list. Finally, the four motivations extended to advantaged group members acting in solidarity with the disadvantaged, while only the identity motivation was constrained by theoretically relevant cultural dimensions and values (e.g., collectivism and hierarchy). We discuss the implications and limitations of the dual chamber model for integrative theorizing, innovative research, and the practice of collective action. Public Significance StatementThis broad research synthesis finds that individuals' engagement in collective action (e.g., protests, demonstrations) is uniquely predicted by their identity, moral, injustice, and efficacy motivations. Despite small cultural constraints, the four motivations predicted collective action across the globe and applied to disadvantaged group members as well as advantaged group members acting in solidarity with them. Our findings offer specific recommendations for practitioners toward targeting these four motivations for collective action.

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Previous studies suggested that public trust in government is vital for implementations of social policies that rely on public's behavioural responses. This study examined associations of trust in government regarding COVID-19 control with recommended health behaviours and prosocial behaviours. Data from an international survey with representative samples (N=23,733) of 23 countries were analysed. Specification curve analysis showed that higher trust in government was significantly associated with higher adoption of health and prosocial behaviours in all reasonable specifications of multilevel linear models (median standardised β=0.173 and 0.244, P&lt;0.001). We further used structural equation modelling to explore potential determinants of trust in government regarding pandemic control. Governments perceived as well organised, disseminating clear messages and knowledge on COVID-19, and perceived fairness were positively associated with trust in government (standardised β=0.358, 0.230, 0.055, and 0.250, P&lt;0.01). These results highlighted the importance of trust in government in the control of COVID-19.

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