Table 2.

Internal consistency reliability of Patient-Reported Outcomes Measurement Information System 29+2 (version 2.1) preference–based score scales on the baseline health survey.

Scale	Did not endorse fake health condition (n=5836)	Endorsed fake health condition (n=996)
Physical function	0.89	0.69
Pain interference	0.94	0.80
Fatigue	0.92	0.80
Depression	0.92	0.78
Anxiety	0.90	0.78
Sleep disturbance	0.84	−0.27
Ability to participate in social roles or activities	0.92	0.77
Cognitive function	0.77	0.65