The study aims to adapt the IADL for Philippine use and determine its psychometric validity when used among older Filipino persons. The study utilized a cross-sectional design to validate the Lawton Instrumental Activities of Daily Living (IADL) for Filipino older persons. Seventeen (17) older persons were recruited from the Senior Citizen Registry of San Francisco Del Monte Quezon City, The original version of IADL was translated to Filipino by a certified translator and back translated to English. The final version was pre-tested by cognitively intact older persons. Internal consistency and Exploratory Factor Analysis (EFA) of the Fil- IADL was computed by Cronbachs α. The construct validity was studied by Exploratory Factor Analysis (EFA), Item convergent and discriminant validity was examined by Interclass Correlation Coefficient (ICC) for scores at baseline and 2 weeks and the correlation of the IADL scale with Nottingham ADL Scale and Frenchay Activities Index (FAI) using Spearman correlation coefficient. A p-value of less than 0.05 was considered statistically significant for all the analyses. The tool has an internal consistency of .80, which indicates that the tool is sufficiently reliable to use. Test re-test reliability was done at a mean of 14 days apart. The mean Fil- IADL mean scores were 5.47 (SD= 2.12) and 5.35 (SD= 2.17) for baseline and follow-up, respectively, with a mean change of 1.46 p=.163 >.05 and a correlation of .988 p=.000 <.05. Exploratory Factor Analysis (EFA) results of the eight items in Fil-IADL found factor loading of .52 to .88 and item communalities of .55 to .88 which indicates that the factor loadings and commonalities are acceptable and is above .40. This result indicates that the eight items on the questionnaire represent a single factor and they are related. Item scale correlations revealed a correlation of the following: “ability to use telephone” (.81≤ .05); “ability to do shopping” (1.0 ≤ .05); “food preparation capacity” (1.0 ≤ .05); “independence for transportation” (.64 .05); and “ability to handle finances” (1.0 ≤.05). Correlations of the Fil-IADL to Nottingham ADL Scale and Frenchay Activities Index (FAI) shows a correlation of the following: “ability to use telephone” (.75 ≤ .05) to Nottingham but no correlation to FAI; “food preparation capacity” (.53-.56 ≤ .05) to FAI and Nottingham and; and “independence for transportation” (.30-.66 ≤ .05) to FAI and Nottingham. The Fil-IADL is a reliable tool to measure the functional status of older persons but cannot be used to measure the frequency of activities. It is also recommended that measurements of functions related to housekeeping and laundering must be administered to female respondents only. Further study is recommended to prove that the 8 items of the FIL-ADL will be reliable to be use in male and female Filipino older persons.

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M. J. De Leon, E. L. Urgel, P. Ed. G. Cuevas and E. Jr. Dasalla, “Adaptation of lawton instrumental activities of daily living (IADL) for filipino older persons,” International Journal of Health and Medical Sciences, vol. 2, no. 1, pp. 1-6, 2016.