Reliability of Katz's Activities of Daily Living Scale when used in telephone interviews.
The reliability of a five-item Katz's Activities of Daily Living (ADL) scale collected by self-report telephone interview is presented. A random sample of 6,472 South Carolina residents over 55 years of age selected from a statewide population is used. Factor structure, Guttman properties, internal consistency reliability, Mokken's index of test homogeneity, and Spearman's coefficient of rank-order correlation are used to show that ADL data gathered by telephone interview are reliable. Because telephone interviewing methods are faster, cheaper, and safer they are recommended as a viable way for researchers, policymakers, and practitioners to gather ADL information.
Ciesla
J R
JR
University of South Carolina.
Shi
L
L
Stoskopf
C H
CH
Samuels
M E
ME
D000203:Activities of Daily Living; D000368:Aged; D005163:Factor Analysis, Statistical; D006301:Health Services Needs and Demand; D006302:Health Services Research / Q000379:methods*; D006801:Humans; D007407:Interviews as Topic; D015203:Reproducibility of Results; D013022:South Carolina; D013689:Telephone