Clearing the air: evaluating institutions’ social media health messaging on wildfire and smoke risks in the US Pacific Northwest

Table 3 Mean Protection Motivation Theory scores by institution type and regional scale

	Protection Motivation Theory score (standard error)	Vargha and Delaney’s A (effect size)	W	p
Institution type
Environmental	1.24 (0.04)	0.50 (negligible)	177,206	0.815
Health	1.30 (0.06)	0.50 (negligible)	177,206	0.815
Regional scale
State or national	1.53 (0.04)	0.58 (small)	200,098	< 0.001
Local	1.92 (0.07)	0.58 (small)	200,098	< 0.001

ISSN: 1471-2458