TY - JOUR
T1 - Validity and reliability of the Medical Outcomes Study Short Form-20 questionnaire as a measure of quality of life in elderly people living at home
AU - Carver, Daniel J.
AU - Chapman, Chere A.
AU - Thomas, Vince Salazar
AU - Stadnyk, Karen J.
AU - Rockwood, Kenneth
PY - 1999
Y1 - 1999
N2 - Background: the Medical Outcomes Study Short Form-20 (SF-20) questionnaire is recommended for health-related quality of life research, but there is little information on its utility in older people. We assessed the validity, reliability and feasibility of using the SF-20 in an elderly community-dwelling population. Methods: the SF-20 was administered to a stratified, random sample of 333 elderly subjects. Findings: assessment of content validity revealed that important domains were lacking, while others appeared to be inappropriately combined. Using Spearman correlation coefficients, the SF-20 had acceptable convergent and discriminant validity. A principal components analysis provided evidence for internal consistency for some of the subscales. Evidence for test-retest reliability was good. Interpretation: while the reliability and feasibility of the SF-20 appear satisfactory, concerns about validity and responsiveness should temper enthusiasm for its use with elderly people living at home.
AB - Background: the Medical Outcomes Study Short Form-20 (SF-20) questionnaire is recommended for health-related quality of life research, but there is little information on its utility in older people. We assessed the validity, reliability and feasibility of using the SF-20 in an elderly community-dwelling population. Methods: the SF-20 was administered to a stratified, random sample of 333 elderly subjects. Findings: assessment of content validity revealed that important domains were lacking, while others appeared to be inappropriately combined. Using Spearman correlation coefficients, the SF-20 had acceptable convergent and discriminant validity. A principal components analysis provided evidence for internal consistency for some of the subscales. Evidence for test-retest reliability was good. Interpretation: while the reliability and feasibility of the SF-20 appear satisfactory, concerns about validity and responsiveness should temper enthusiasm for its use with elderly people living at home.
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U2 - 10.1093/ageing/28.2.169
DO - 10.1093/ageing/28.2.169
M3 - Article
C2 - 10350414
AN - SCOPUS:0032903857
SN - 0002-0729
VL - 28
SP - 169
EP - 174
JO - Age and Ageing
JF - Age and Ageing
IS - 2
ER -