Table 2.

Means (SDs) of Willingness to be Vaccinated and Attitude for the Seven Policies.

Condition	Willingness to be Vaccinated	Attitude
		Trust	Restriction of Freedom	Ethicality	Deception and Manipulation
Opt-in (n = 274)	4.39 (1.19)	3.83 (.81)	3.44 (1.05)	3.85 (.83)	3.62 (1.19)
Conventional Opt-out (n = 269)	4.64 (1.12)	3.95 (.77)	3.54 (1.08)	3.88 (.88)	3.68 (1.04)
Improved Opt-out
Opt-out Transparency (n = 276)	4.50 (1.17)	3.88 (.88)	3.33 (1.03)	3.77 (.92)	3.59 (.98)
Opt-out Education (n = 269)	4.76 (1.15)	4.00 (.86)	3.62 (1.01)	3.97 (.95)	3.75 (.97)
Opt-out Social Norm (n = 283)	4.63 (1.17)	3.94 (.84)	3.52 (1.00)	3.80 (.89)	3.65 (1.03)
Opt-out Feedback (n = 274)	4.63 (1.21)	3.89 (.88)	3.56 (1.09)	3.87 (.96)	3.65 (1.06)
Opt-out Opportunity (n = 281)	4.74 (1.12)	3.94 (.78)	3.55 (1.07)	3.86 (.89)	3.65 (1.11)