Table 3.

The stimulus pairs, in order of scale score difference within domain, with 1PL b parameters for “different” judgments.

Stimulus Label	Scale Score			Wrong Direction Omitted		Wrong Direction Reversed
	1 month ago	Today	Difference	b	s.e.	b	s.e.
Depressive Symptoms 2	49.5	57.9	8.4	−2.57	0.55	−2.85	0.73
Depressive Symptoms 3	56.7	62.1	5.4	−2.63	0.57	−2.90	0.74
Depressive Symptoms 1	43.5	45.9	2.4	0.75	0.22	0.61	0.25
Depressive Symptoms 5	64.3	62.1	−2.2	−1.08	0.29	−1.22	0.36
Depressive Symptoms 4	62.1	58.9	−3.2	−2.14	0.47	−2.20	0.57
Depressive Symptoms 6	73.4	66.0	−7.4	−2.58	0.55	−2.74	0.70
Pain 1	43.6	51.4	7.8	−2.62	0.56	−2.91	0.75
Pain 2	52.4	57.6	5.2	−3.07	0.66	−3.26	0.83
Pain 3	56.8	60.4	3.6	−2.02	0.45	−2.20	0.57
Pain 4	58.5	57.6	−0.9	0.49	0.21	0.49	0.24
Pain 6	72.9	68.0	−4.9	−2.00	0.44	−2.13	0.56
Pain 5	68.0	59.6	−8.4	−2.83	0.60	−3.04	0.78
Fatigue 2	52.2	57.8	5.6	−2.52	0.54	−2.74	0.70
Fatigue 3	56.9	60.1	3.2	−1.55	0.37	−1.86	0.50
Fatigue 1	45.9	47.0	1.1	1.27	0.28	1.11	0.33
Fatigue 4	60.1	57.8	−2.3	−0.70	0.24	−0.76	0.28
Fatigue 5	68.6	62.2	−6.4	−2.90	0.62	−3.04	0.78
Fatigue 6	76.4	68.6	−7.8	−2.34	0.51	−2.53	0.65
Mobility 3	40.2	46.9	6.7	−2.74	0.58	−2.85	0.73
Mobility 2	34.0	39.5	5.5	−2.93	0.62	−3.04	0.78
Mobility 1	30.5	34.0	3.5	−2.54	0.54	−2.63	0.68
Mobility 4	46.9	44.3	−2.6	0.56	0.21	0.25	0.22
Mobility 5	50.0	44.3	−5.7	−1.38	0.34	−1.57	0.43
Mobility 6	58.5	50.0	−8.5	0.53	0.21	0.43	0.23

Note: PROMIS Scale Scores are on a T-score metric with mean 50 and standard deviation of 10 from the calibration population (ages 8–17). Higher scores for depressive symptoms, pain, and fatigue represent worsening symptom burden and higher scores for mobility represent better functioning. b = threshold parameter of the 1-parameter logistic (1PL) IRT model.