The Academic Medical Center Linear Disability Score (ALDS) item bank: item response theory analysis in a mixed patient population

Holman, Rebecca; Weisscher, Nadine; Glas, Cees AW; Dijkgraaf, Marcel GW; Vermeulen, Marinus; de Haan, Rob J; Lindeboom, Robert

doi:10.1186/1477-7525-3-83

Table 2 the 77 items and their measurement properties

From: The Academic Medical Center Linear Disability Score (ALDS) item bank: item response theory analysis in a mixed patient population

				Number of responses
Item	Item description	Item sets	Presented to	NA	can not	can	β	s.e.(β)	α	s.e.(α)
1	Cycling for 2 hours	ADE	556	22	448	86	-3.057	0.374	2.450	0.326
2	Vacuuming a flight of stairs	ADE	556	21	387	148	-2.653	0.307	3.231	0.399
3	Walking upstairs with a bag	AEF	532	13	364	155	-2.140	0.265	2.702	0.325
4	Cleaning a bathroom	ACD	578	10	368	200	-1.959	0.188	3.071	0.332
5	Vacuuming a room (furniture)	ACF	554	7	369	178	-1.879	0.166	2.455	0.223
6	Fetching groceries for 3–4 days	CD	343	0	267	76	-1.633	0.246	2.439	0.456
7	Going for a walk in the woods	ADE	556	17	345	204	-1.504	0.172	2.562	0.284
8	Traveling by bus or tram	ADE	556	18	307	231	-1.230	0.145	2.864	0.277
9	Walking for more than 15 min	ADE	556	2	298	256	-0.818	0.105	2.131	0.214
10	Carrying a tray	ADE	556	12	316	228	-0.808	0.100	1.618	0.163
11	Walking up a hill/high bridge	ADE	556	17	294	245	-0.781	0.094	1.993	0.165
12	Shopping for clothes	CF	319	2	206	111	-0.723	0.167	3.401	0.570
13	Cutting toe nails	AEF	532	4	286	242	-0.655	0.089	1.626	0.148
14	Filling a form in	DE	321	3	225	94	-0.614	0.088	1.028	0.131
15	Going to a party	DE	321	1	215	105	-0.560	0.092	1.407	0.171
16	Standing for 10 minutes	ACF	554	6	274	274	-0.525	0.090	1.834	0.161
17	Going to a restaurant	ACD	578	12	272	294	-0.481	0.085	1.975	0.173
18	Sweeping a floor	AEF	532	11	235	286	-0.450	0.105	2.872	0.336
19	Hanging up the washing	ACD	578	29	261	288	-0.445	0.092	2.257	0.248
20	Vacuuming a room	A	235	7	50	178	-0.347	0.203	2.470	0.546
21	Moving a bed or table en	EF	297	1	184	112	-0.304	0.091	1.342	0.144
22	Using a washing machine	DE	321	8	183	130	-0.234	0.106	2.072	0.271
23	Reaching into a high cupboard	ACF	554	5	248	301	-0.234	0.071	1.525	0.145
24	Walking up stairs	ACF	554	5	233	316	-0.192	0.082	2.190	0.241
25	Going to a bank or post office	ABCF	681	2	328	351	-0.130	0.089	3.119	0.305
26	Walking down stairs	AEF	532	4	204	324	-0.020	0.086	2.620	0.325
27	Going to a doctor	DE	321	9	164	148	0.020	0.125	3.289	0.435
28	Using a dustpan and brush	EF	297	2	159	136	0.083	0.108	2.503	0.422
29	Going for a short walk	ABCF	681	3	309	369	0.071	0.074	2.059	0.171
30	Writing a letter	BCD	470	4	245	221	0.175	0.068	0.862	0.092
31	Changing the sheets on a bed	CF	319	3	154	162	0.209	0.093	1.560	0.218
32	Crossing the road	CF	319	0	165	154	0.224	0.142	2.906	0.318
33	Opening a window	DE	321	0	149	172	0.240	0.086	1.417	0.179
34	Fetching groceries for 1–2 days	ABEF	659	2	276	381	0.291	0.088	2.529	0.230
35	Polishing shoes	CF	319	11	146	162	0.342	0.107	1.899	0.267
36	Showering	ABCD	705	6	243	456	0.657	0.077	1.950	0.183
37	Folding up the washing	CD	343	13	122	214	0.698	0.113	1.595	0.205
38	Dusting	AEF	532	18	141	373	0.702	0.100	2.391	0.267
39	Putting lace up shoes on	BDE	448	1	193	254	0.759	0.097	1.584	0.180
40	Cleaning a toilet	EF	297	1	115	181	0.779	0.122	2.102	0.293
41	Cutting finger nails	AEF	532	2	113	417	0.901	0.092	1.519	0.153
42	Making a bed	ADE	556	4	127	425	0.842	0.087	1.732	0.196
43	Reaching under a table	CD	343	1	104	238	0.918	0.103	1.438	0.171
44	Heating tinned food	ACD	578	10	143	425	0.922	0.107	2.572	0.265
45	Frying an egg	ADE	556	8	134	414	1.022	0.134	3.083	0.378
46	Reaching into a low cupboard	CF	319	0	90	229	1.092	0.134	1.513	0.206
47	Moving between two low chairs	EF	297	1	76	220	1.144	0.139	1.381	0.197
48	Picking something up	BEF	424	0	170	253	1.151	0.141	2.019	0.228
49	Cleaning a bathroom sink	DE	321	6	107	208	1.180	0.174	2.783	0.451
50	Putting the washing up away	DE	321	14	89	218	1.263	0.145	2.001	0.274
51	Reading a newspaper	DE	321	1	56	264	1.278	0.135	0.902	0.144
52	Getting in and out of a car	ADE	556	7	98	451	1.339	0.141	2.174	0.239
53	Making porridge	ACD	578	20	110	448	1.369	0.144	2.441	0.283
54	Clearing a table after a meal	CF	319	0	95	224	1.471	0.225	2.555	0.427
55	Peeling an apple	ADE	556	8	62	486	1.498	0.112	1.200	0.122
56	Making breakfast or lunch	AEF	532	8	87	437	1.517	0.173	2.273	0.300
57	Cleaning kitchen surfaces	CF	319	2	90	227	1.765	0.249	2.955	0.462
58	Putting a chair upto the table	ACF	554	3	75	476	1.777	0.186	2.060	0.277
59	Eating a meal at the table	BCD	470	0	101	369	1.788	0.149	1.352	0.134
60	Washing up	CD	343	1	74	268	1.863	0.223	2.244	0.309
61	Putting step-in shoes on	ADF	539	2	58	479	1.930	0.208	1.899	0.277
62	Sitting up in bed	EF	297	0	34	263	1.948	0.219	1.248	0.197
63	Getting a book off the shelf	CF	319	0	45	274	2.106	0.264	1.672	0.250
64	Answering the telephone	BDE	448	0	60	388	2.148	0.179	1.156	0.123
65	Hanging clothes up	AEF	532	5	66	461	2.192	0.248	2.645	0.369
66	Making coffee or tea	CD	343	0	58	285	2.348	0.298	2.316	0.332
67	Putting trousers on	ACD	578	5	70	503	2.376	0.261	2.744	0.364
68	Making a bowl of cereal	DE	321	2	55	264	2.280	0.297	2.292	0.335
69	Sitting on the edge of the bed	BEF	424	1	52	371	2.674	0.298	1.452	0.183
70	Moving between 2 dining chairs	DE	321	0	44	277	2.722	0.463	2.353	0.470
71	Washing lower body	DE	321	0	57	264	2.777	0.470	3.027	0.587
72	Putting a coat on	ABCF	681	3	99	579	2.859	0.308	2.392	0.291
73	Washing face and hands	BEF	424	0	75	349	2.969	0.389	2.067	0.284
74	Getting out of bed into a chair	ABEF	659	4	85	570	2.987	0.266	2.261	0.241
75	Going to the toilet	ABCD	705	5	115	585	3.077	0.461	2.954	0.453
76	Washing lower body (taken)	CD	343	1	52	290	3.235	0.580	3.140	0.616
77	Putting a T-shirt on	EF	297	0	32	265	3.494	0.960	2.690	0.792

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ISSN: 1477-7525

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