Table 2.

Mean score comparison between T1 and T2.

Variable	T1 (N = 591)		T2 (N = 474)		Welch’s t
	Mean	SD	Mean	SD	t	Cohen’s d	p-value
Vaccinationa	55.6	35.4	79.4	30.8	11.08	0.71	0.013
Risk perception
Vulnerability	35.36	23.90	34.98	24.93	−0.25	−0.02	0.959
Probability of occurrence	56.60	23.00	56.93	22.69	0.23	0.001	0.959
Severity	64.24	28.03	65.64	26.51	0.81	0.05	0.838
Total	46.34	18.73	46.17	19.37	−0.14	−0.01	0.959
Control	58.79	24.39	58.22	24.74	−0.37	−0.02	0.959
MAVA
DPA	56.46	25.472	57.85	24.36	0.88	0.06	0.838
APA	36.70	25.784	37.73	24.54	0.65	0.04	0.838
DNA	52.55	28.710	51.35	27.49	−0.68	−0.04	0.838
ANA	48.40	26.401	45.48	25.62	−1.77	−0.11	0.500
Trust in institutions
Health institutions	3.68	0.903	3.72	0.86	0.83	0.05	0.838
Political institutions	2.39	0.960	2.33	0.93	−0.55	−0.03	0.838
Total	3.04	0.748	3.04	0.73	0.01	>0.01	0.996

^aWelch t-test was conducted instead of student t-test due to a heterogeneity of variances (see Supplementary Table S1).

MAVA, measurement of affectivity: valence/activation; DNA, deactivated negative affect; ANA, activated negative affect; DPA, deactivated positive affect; APA: activated positive affect.