No difference was found in the strength of correlation between validation against the most similar construct versus validation against the least similar construct .
It is concluded that the Arthritis Impact Measurement Scale ( AIMS ) is the most suitable instrument for the assessment of disabilities in personal care
OBJECTIVES The first aim was to make an inventory of available instruments and question naires for the assessment of  disabilities  in personal care in patients with rheumatic disorders .
The second aim was to investigate which of these instruments have acceptable , method ological quality with regard to reliability , validity and responsiveness .
The third aim was to investigate the assumption that convergent validity results in stronger correlations when vali date d against a more similar construct .
Comparison of two approaches to measuring change in health status in rheumatoid arthritis: the Health Assessment Questionnaire (HAQ) and modified HAQ.
As an alternative to the calculation of change scores for health status question naires used in clinical trials or longitudinal studies , transitional questions have been developed for patients to assess changes directly themselves . Here the original Health Assessment Question naire ( HAQ ) is compared with a modified version of the HAQ ( MHAQ ) which contains transition questions used at follow up . These , together with a set of st and ard rheumatological tests , were all completed by 100 patients with rheumatoid arthritis on two occasions , three months apart . Change scores were calculated for the HAQ and for the clinical measures and compared with the MHAQ . The results were strikingly in favour of encouraging patients to assess their own degree of change through the use of transition questions in the MHAQ
No difference was found in the strength of correlation between validation against the most similar construct versus validation against the least similar construct .
It is concluded that the Arthritis Impact Measurement Scale ( AIMS ) is the most suitable instrument for the assessment of disabilities in personal care
OBJECTIVES The first aim was to make an inventory of available instruments and question naires for the assessment of  disabilities  in personal care in patients with rheumatic disorders .
The second aim was to investigate which of these instruments have acceptable , method ological quality with regard to reliability , validity and responsiveness .
The third aim was to investigate the assumption that convergent validity results in stronger correlations when vali date d against a more similar construct .