Table 1 |
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|
Pooled responses about clarity to four physical-function itemsa |
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|
Item stem and response options |
Number |
% Rated unclear (SEb) |
|
|
|
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|
Are you able to [...] |
258 |
7.75 (0.02) |
|
|
1. Without any difficulty 2. With a little difficulty 3. With some difficulty |
4. With much difficulty 5. Unable to do) |
||
|
Does your health now limit you in [...] |
270 |
7.78 (0.02) |
|
|
1. Not at all 2. Very little 3. Somewhat |
4. Quite a lot 5. Cannot do |
||
|
Due to my health [...] is |
270 |
10.74 (0.02) |
|
|
1. Impossible 2. Very difficult 3. Slightly difficult |
4. Easy 5. Very easy |
||
|
How easy is it for you to [...] |
258 |
11.63 (0.02) |
|
|
1. Very easy 2. Easy 3. Slightly difficult |
4. Difficult 5. Very difficult 6. Impossible |
||
|
For me, [...] is ... |
258 |
15.12 (0.02) |
|
|
1. Very easy 2. Easy 3. Slightly difficult |
4. Difficult 5. Very difficult 6. Impossible |
||
|
Does your health now limit you in [...]? If so, how much?a |
136 |
17.65 (0.03) |
|
|
1. Yes, limited a lot 2. Yes, limited a little |
3. No, not limited at all |
||
|
|
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|
aBathe and dress yourself, climb several flights of stairs, open a new milk carton, and run errands and shop. bStandard error. cPF-10 items, normally presented in grid format, were originally presented as single items with two-part questions. Only item stems and response options varied. |
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|
Bruce et al. Arthritis Research & Therapy 2009 11:R191 doi:10.1186/ar2890 |
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