Developmental antecedents of young adults' solidarity during the Covid-19 pandemic: The role of sympathy, social trust, and peer exclusion from early to late adolescence.

This study explored characteristics of young adults' solidarity during the Covid-19 pandemic by identifying three different profiles, characterized by low (23%), average (54%), and high solidarity (23%). Based on longitudinal Swiss panel data (NT1  = 797, Mage T1  = 12.15 years, 51% female; 28% migration background representing diverse ethnicities; NT2  = 707, Mage T2  = 15.33 years; NT3  = 596, Mage T3  = 18.31 years), the study combined person- and variable-centered approaches to examine whether sympathy, social trust, and peer exclusion at earlier phases in development predicted membership in pandemic-related solidarity profiles (NT4  = 300, Mage T4  = 20.33 years). All developmental predictors were significantly associated with the likelihood of expressing solidarity during the pandemic as young adults.