Table 3.

Results of mediation analysis of the effects of two beliefs on the willingness to vaccinate now, through the manipulation of presenting the high or the low threshold as goals.

Type	Effect	Estimate	SE	Lower CI	Upper CI	β	z	p
Indirect	HHIT90% ⇒ ReachThresh ⇒ VaccWill	−0.199	0.045	−0.292	−0.118	−0.053	−4.426	<0.001
Indirect	HHIT90% ⇒ Vac%Pop ⇒ VaccWill	0.102	0.035	0.040	0.175	0.027	2.942	0.003
Component	HHIT90% ⇒ ReachThresh	−0.503	0.086	−0.675	−0.337	−0.196	−5.825	<0.001
Component	ReachThresh ⇒ VaccWill	0.396	0.065	0.263	0.518	0.271	6.106	<0.001
Component	HHIT90% ⇒ Vac%Pop	3.294	0.916	1.442	5.101	0.123	3.598	<0.001
Component	Vac%Pop ⇒ VaccWill	0.031	0.006	0.020	0.043	0.222	5.229	<0.001
Direct	HHIT90% ⇒ VaccWill	−0.034	0.131	−0.296	0.223	−0.009	−0.260	0.795
Total	HHIT90% ⇒ VaccWill	−0.131	0.131	−0.388	0.126	−0.035	−1.001	0.317

HHIT90% refers to the 90% herd immunity threshold (dummy coded as 1 = the high 90% condition, 0 = the low 60% condition). Confidence intervals computed with the method bootstrap percentiles. Betas are completely standardized effect sizes.