. Author manuscript; available in PMC: 2016 Nov 1.

Published in final edited form as: Qual Life Res. 2015 Jun 3;24(11):2591–2599. doi: 10.1007/s11136-015-1010-y

Table 4.

Summary of Multitrait-Multimethod Matrices

Measures	Mean Correlation, r^a
	Monotrait-Heteromethod	Heterotrait-Monomethod	Heterotrait-Heteromethod
PROMIS CAT and other PROs^b
Baseline	0.76	0.66	0.62
Follow-up	0.63	0.50	0.44
PROMIS Short Form and other PROs^b
Baseline	0.79	0.70	0.63
Follow-up	0.61	0.48	0.42

Abbreviations: CAT, computerized adaptive test; PRO, patient-reported outcome.

From Pearson product moment correlation.

Other PROs include the Kansas City Cardiomyopathy Questionnaire, the Medical Outcomes Study Short Form-36, and the Patient Health Questionnaire-2.