Table 3.

Differences in attitudes between those vaccinated/scheduled to be vaccinated vs. not vaccinated (T1).

	Vaccinated N = 394	No intent of vaccination N = 109	Δ	Effect size* (Cohen's d)**	t (df)	p-value
Knowledge	3.89 ± 0.67	3.14 ± 0.73	+23.5%	1.07	−10.2 (501)	<0.001
Resilience	3.60 ± 0.78	3.53 ± 0.82	+2.0%	-	−0.89 (501)	0.373
Trust in authorities	3.90± 0.71	3.02 ± 0.96	+29.0%	1.04	−8.86 (501)	<0.001
Vaccine importance	2.14 ± 0.74	1.12 ± 0.70	+91.1%	1.41	−25.89 (501)	<0.001
Vaccine trust	3.13 ± 0.85	2.85 ± 0.84	+9.8%	0.33	−3.07 (501)	0.002
Feeling protected	2.72 ± 1.12	2.86 ± 1.14	−4.9%	0.12	1.19 (501)	0.232
Afraid to be infected	3.63 ± 1.16	3.33 ± 1.28	+9.0%	0.25	−2.38 (501)	0.018

Data are presented as mean ± standard deviation and median (Q25–Q75). p-value is based on an independent sample t-test.

Effect size *: 0.2-Small, 0.5-Medium, and 0.8-Large.

Cohen's d **: appropriate effect size for the comparison between two means.