In general , estimates of construct validity were lower when vali date d against dissimilar constructs , except for instruments measuring impairments in mental functions .
CONCLUSION There is a trend that validation against a similar construct yields higher correlation coefficients than validation against a dissimilar construct .
PURPOSE This paper focuses on the construct validity of instruments measuring impairments in body structures and function in rheumatic disorders .
The objective is : 1 ) to make an inventory of constructs , based on the domains of the International Classification of Functioning , Disabilities and Health problems ( ICF ) , against which instruments measuring impairments in body structures and function were vali date d ; 2 ) to analyse whether validation against a similar construct result ed in higher correlation coefficients than validation against a dissimilar construct .
An articular index for the assessment of osteoarthritis.
An articular index was devised for the sequential assessment of patients with osteoarthritis ( OA ) . Forty-eight joint units , chosen to reflect the characteristic pattern of the disease , were scored for tenderness on pressure or movement on a 4-point scale . Four observers examined patients to assess inter- and intraobserver error . The index was highly reproducible both within and between observers ; intraobserver error was , however , significantly smaller . In a double-blind , cross-over trial the index was sufficiently sensitive to detect a statistically significant difference between the responses of patients with OA to an anti-inflammatory agent and to a simple analgesic . It is likely to be a useful addition to current methods of measurement in osteoarthritis
In general , estimates of construct validity were lower when vali date d against dissimilar constructs , except for instruments measuring impairments in mental functions .
CONCLUSION There is a trend that validation against a similar construct yields higher correlation coefficients than validation against a dissimilar construct .
PURPOSE This paper focuses on the construct validity of instruments measuring impairments in body structures and function in rheumatic disorders .
The objective is : 1 ) to make an inventory of constructs , based on the domains of the International Classification of Functioning , Disabilities and Health problems ( ICF ) , against which instruments measuring impairments in body structures and function were vali date d ; 2 ) to analyse whether validation against a similar construct result ed in higher correlation coefficients than validation against a dissimilar construct .