Table 4.

Robustness tests—endogeneity and prior COVID-19 beliefs

Variable	(1)	(2)
Left-wing mean bias	−0.0009* (0.0004)	−0.0008* (0.0004)
Right-wing mean bias	0.0003 (0.0003)	0.0002 (0.0003)
Lax COVID-19 restrictions	–	−0.0057 (0.0042)
Hydroxychloroquine is effective	–	0.0064 (0.0047)
COVID-19 developed in lab	–	0.0019 (0.0041)
N	8182	8182
Pseudo R2	0.2976	0.2996
Wald Χ2	659.64†	675.79†

The coefficients reported are average marginal effects. Robust SEs are shown in parentheses. All of the covariates listed in table 1 have been included in the regression.

*Denotes statistical significance at the 5% level.

†Denotes statistical significance at the 1% level.

‡Denotes statistical significance at the 10% level.