Table 4.

Differences in PROMIS Measures by Mode of Administration and Diagnosis

	Self-Report			Interview
	n	M	SD	n	M	SD	D	t	df	p
Full sample
Physical Function	119	38.87	13.70	150	39.09	14.06	−0.22	−0.13	256.04	0.90
Fatigue	123	51.68	9.87	152	50.58	9.89	1.10	0.91	261.38	0.36
Pain Interference	120	54.37	9.58	151	53.78	9.81	0.60	0.50	257.88	0.62
Anger	123	50.66	9.24	152	50.46	9.53	0.20	0.18	264.27	0.86
Anxiety	123	52.67	8.85	152	52.52	8.99	0.15	0.14	262.76	0.89
Depression	123	52.61	9.15	151	50.84	9.38	1.78	1.58	263.31	0.11
Emotional Support	121	48.56	8.12	152	51.13	9.18	−2.57	−2.45	267.93	0.01
SCI subsample
Physical Function	62	28.66	8.39	79	29.69	10.04	−1.03	−0.67	138.42	0.51
Fatigue	66	53.31	9.12	81	50.71	9.60	2.60	1.68	141.58	0.10
Pain Interference	66	56.36	10.49	80	54.94	10.39	1.42	0.82	138.26	0.41
Anger	66	51.70	8.80	81	49.71	9.55	1.99	1.31	142.79	0.19
Anxiety	66	53.14	8.86	81	51.87	8.68	1.27	0.87	137.89	0.39
Depression	66	53.62	8.62	81	50.53	9.35	3.08	2.08	142.75	0.04
Emotional Support	65	46.98	7.46	81	51.68	8.89	−4.69	−3.47	143.70	0.00
TBI subsample	57	49.97	8.83	71	49.54	9.91	0.43	0.26	124.59	0.80
Physical Function	57	49.78	10.45	71	50.43	10.29	−0.64	−0.35	119.30	0.73
Fatigue	54	51.95	7.77	71	52.47	9.01	−0.53	−0.35	121.04	0.73
Pain Interference	57	49.44	9.65	71	51.30	9.49	−1.86	−1.09	119.25	0.28
Anger	57	52.13	8.89	71	53.27	9.34	−1.14	−0.71	122.36	0.48
Anxiety	57	51.45	9.67	70	51.18	9.47	0.27	0.16	118.77	0.87
Depression	56	50.39	8.54	71	50.51	9.52	−0.12	−0.08	122.90	0.94
Emotional Support	57	49.97	8.83	71	49.54	9.91	0.43	0.26	124.59	0.80

Note: D = Differences in means between administration format conditions; positive values reflect higher means in the self-report condition whereas negative values reflect higher means in the interview condition. Degrees of freedom calculated using Satterthwaite approximation.