Reliability of Katz's Activities of Daily Living Scale When Used in Telephone Interviews

Abstract

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.

Development and psychometric testing of an instrument designed to measure chronic pain in dogs with osteoarthritis

“…Methods for the stepwise development of tools to assess subjective states that have been used extensively by researchers in the health sciences 11,12,[14][15][16][17][18][19][22][23][24][25][27][28][29][30][31][32]34,36,37 were used in the development of the CBPI. Items were generated through information gathered from focus groups and an expert panel; these items were tested for readability and ambiguity.…”

“…Standard methods for the development and psychometric testing of instruments designed to assess subjective states [10][11][12][13]15,[18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37] were used for development of the CBPI. Factor format, item structure, and response scaling of the CBPI were based on the rigorously tested BPI, which is an instrument routinely used to provide a broad picture of the effect of chronic pain on human patients.…”

Translation and Validation of the Activities of Daily Living Scale with Iranian Elderly Cancer Patients Treated in an Oncology Unit

“…The Katz index reported good reliability, as evidenced by reliability coefficients ranging from 0.87-0.94 (Ciesla et al, 1993). Hamrin and Lindmark in the study of functional ability in stroke patients stated a reliability coefficient of 0.94 (Hamrin and Lindmark, 1988).…”

The abbreviated comprehensive geriatric assessment (aCGA): a retrospective analysis

“…Some studies suggest that the GDS, ADL and IADL can be administered via self-report and in the case of the GDS and ADL, over the phone [25][26][27][28]. The MMSE has not been shown to be reliable as a self-report measure.…”