Measuring the impact and distress of health problems from the individual's perspective: development of the Perceived Impact of Problem Profile (PIPP)

Table 2 Individual item fit statistics for PIPP: Impact scale items

	Item	Location	SE	FitResid	DF	ChiSq	DF	Prob
Self-care	4	-0.81	0.19	-0.20	71.75	5.26	2	0.072
	5	-0.08	0.20	-0.36	71.75	1.10	2	0.578
	6	-0.43	0.23	-0.03	71.75	0.42	2	0.810
	7	1.33	0.24	0.08	71.75	3.83	2	0.148
Mobility	9	-1.18	0.18	-0.19	124.81	3.10	2	0.212
	10	-0.42	0.15	-0.52	122.46	1.26	2	0.534
	11	0.25	0.14	1.82	123.24	0.33	2	0.850
	12	1.49	0.17	-0.33	124.81	6.48	2	0.039
	13	-0.14	0.14	-0.01	121.67	0.29	2	0.866
Participation	8	0.07	0.15	2.78	103.15	7.82	2	0.020
	19	0.84	0.15	-0.06	107.70	1.12	2	0.571
	19	0.55	0.16	-1.43	106.18	12.82	2	0.002
	20	-0.58	0.14	0.49	109.98	1.80	2	0.406
	21	-0.88	0.18	-1.04	65.99	3.14	2	0.208
Relationships	14	0.05	0.16	0.62	60.41	2.32	2	0.314
	15	0.42	0.20	0.45	60.41	2.76	2	0.252
	16	0.12	0.19	0.33	58.28	3.11	2	0.211
	17	-0.59	0.19	1.06	46.91	3.70	2	0.157
Psychological well-being	1	-1.01	0.19	-0.74	126.70	1.86	2	0.394
	2	0.48	0.18	0.02	126.70	0.29	2	0.863
	3	0.55	0.15	0.10	126.70	1.39	2	0.500
	22	0.34	0.14	-1.66	121.98	2.01	2	0.366
	23	-0.36	0.15	-0.73	125.91	2.88	2	0.237

ISSN: 1477-7525