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

Table 3 Individual item fit statistics for PIPP: Distress scale items

	Item	Location	SE	FitResid	DF	ChiSq	DF	Prob
Self-care	4	-0.56	0.23	-0.39	55.18	2.05	2	0.359
	5	-0.04	0.23	0.04	55.18	3.54	2	0.171
	6	-0.70	0.22	0.87	55.18	2.24	2	0.326
	7	1.31	0.27	-0.01	54.46	1.59	2	0.451
Mobility	9	-0.65	0.17	-0.56	105.56	8.72	2	0.013
	10	-0.30	0.15	-0.25	104.00	0.27	2	0.875
	11	0.01	0.15	0.97	102.44	0.16	2	0.923
	12	1.10	0.17	-0.45	104.78	9.41	2	0.009
	13	-0.16	0.15	0.93	103.22	0.50	2	0.780
Participation	8	-0.09	0.16	2.16	88.60	2.23	2	0.329
	18	0.71	0.17	-0.50	90.87	2.71	2	0.258
	19	0.49	0.17	0.22	89.36	3.87	2	0.144
	20	-0.46	0.15	-0.22	92.38	0.39	2	0.823
	21	-0.65	0.19	-0.64	56.79	5.03	2	0.081
Relationships	14	0.27	0.18	1.07	55.29	1.27	2	0.531
	15	0.40	0.19	0.28	55.29	1.06	2	0.589
	16	0.12	0.19	0.16	53.17	6.12	2	0.047
	17	-0.79	0.19	0.66	43.24	0.38	2	0.826
Psychological well-being	1	-0.74	0.19	-0.20	113.86	0.13	2	0.938
	2	0.16	0.18	0.10	113.86	0.26	2	0.877
	3	0.47	0.17	-0.36	113.07	1.26	2	0.532
	22	0.25	0.16	-0.76	108.36	2.45	2	0.295
	23	-0.14	0.15	-1.13	113.86	1.56	2	0.458

ISSN: 1477-7525