Table 1.
Design table.
Fig 1.
Flowchart of study procedures.
Fig 2.
Example of a random intercept model as a structural equation model.
Control variables, intercepts, and errors not shown for clarity.
Table 2.
Hypotheses for testing intervention effects.
Table 3.
Effects of prosocial behavior condition on depression, anxiety, happiness, and valued life.
Table 4.
Marginal effects of prosocial behavior for groups minimally and negatively affected by the COVID-19 pandemic.
Fig 3.
Estimates of the prosocial vs. neutral acts control effects on depression, anxiety, happiness, and valued life at different levels of self-reported effort.
Fig 4.
Estimates of the prosocial vs. self-focused effects on depression, anxiety, happiness, and valued life at different levels of self-reported effort.
Table 5.
Pooled effects of prosocial behavior on depression, anxiety, happiness, and valued life for full sample and respondents reporting high effort.