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 .
The Sickness Impact Profile: Development and Final Revision of a Health Status Measure
The final development of the Sickness Impact Profile ( SIP ) , a behaviorally based measure of health status , is presented . A large field trial on a r and om sample of prepaid group practice enrollees and smaller trials on sample s of patients with hyperthyroidism , rheumatoid arthritis and hip replacements were undertaken to assess reliability and validity of the SIP and provide data for category and item analyses . Test-retest reliability ( r = 0.92 ) and internal consistency ( r = 0.94 ) were high . Convergent and discriminant validity was evaluated using the multitrait – multi method technique . Clinical validity was assessed by determining the relationship between clinical measures of disease and the SIP scores . The relationship between the SIP and criterion measures were moderate to high and in the direction hypotheszed . A technique for describing and assessing similarities and differences among groups was developed using profile and pattern analysis . The final SIP contains 136 items in 12 categories . Overall , category , and dimension scores may be calculated
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 .