. Author manuscript; available in PMC: 2019 May 15.

Published in final edited form as: J Allergy Clin Immunol. 2018 Oct 19;143(2):803–805.e10. doi: 10.1016/j.jaci.2018.10.008

TABLE E2.

Internal consistency reliability and criterion validity

	Reliability	Criterion validity Spearman correlation between MSD and criteria (n)
Encounter	Cronbach α	C-ACT	ACT	ATAQ-Control	SABA days	FEV1pp	FEV₁/FVC
Baseline	0.74	−0.51	−0.68	0.35	0.50	−0.13^*	−0.11^*
3 mo	0.81			0.60	0.64
6 mo	0.82	−0.57	−0.75	0.56	0.59	−0.20^†	−0.23
9 mo	0.74			0.60	0.74
12 mo	0.82	−0.49	−0.69	0.56	0.64	−0.20^†	−0.30
Average	0.79	−0.52	−0.71	0.53	0.62	−0.18	−0.21

All cells are statistically significant at a P value of < .001 unless noted otherwise.

Not statistically significant (P > .05).

^†

P < .05.