Table 4.

Threshold disordering tests for each domain on WHOQOL-BREF

Domain
Threshold	Average measure	Step measure	Infit	Outfit
Physical
1	−1.43	--	1.10	1.17
2	−0.65	−2.96	1.12	1.27
3	−0.03	−0.86	0.87	0.86
4	1.21	0.21	0.87	0.89
5	2.53	3.62	1.04	0.98
Psychological
1	−2.42	--	1.19	1.25
2	−1.29	−2.80	1.01	1.04
3	−0.19	−1.29	0.86	0.83
4	1.32	0.59	0.93	0.92
5	2.87	3.49	1.13	1.07
Social
1	−3.57	--	1.28	1.33
2	−2.34	−4.31	0.96	1.11
3	−0.70	−2.30	0.69	0.59
4	2.35	0.54	0.97	0.95
5	4.75	6.07	1.41	1.06
Environment
1	−2.56	--	1.02	1.09
2	−1.35	−2.98	0.98	1.00
3	−0.25	−1.43	0.85	0.82
4	1.34	0.29	0.92	0.93
5	2.84	4.12	1.46	1.18

Misfit values are in bold.

1 = Very poor/Very dissatisfied/Not at all/Never/None at all.

2 = Poor/Dissatisfied/A little/Slightly/Seldom/Slight/Sometimes.

3 = Neither poor nor good/Neither satisfied nor dissatisfied/A moderate amount/Moderately/Quite often/Moderate/Rather frequently.

4 = Good/Satisfied/Very much/Very/Mostly/Very often/Great/Very frequently.

5 = Very good/Very satisfied/An extreme amount/Extremely/Completely/Total/Always.