Reliability and validity of the Turkish version of the Nottingham Extended Activities of Daily Living Scale.

BACKGROUND AND AIMS: The aim of this study was to develop a Turkish version of the Nottingham Extended Activities of Daily Living Scale (NEADLS) and to assess its reliability and validity.

METHODS: Sixty healthy volunteers over 67 years old were included in the study. After translation, the Turkish version of the scale was filled in by each participant over a period of 2 weeks. Reliability was assessed by internal consistency, test-retest intraclass correlation coefficient (ICC) and Spearman's correlation. Converging validity was determined correlating the scale with the Modified Barthel Index (MBI).

RESULTS: The mean age of participants was 77+/-5.67 years. In the reliability studies, internal consistency within the subsections and items of the NEADLS was good and very good, with Cronbach's alpha values ranging between 0.84-0.93 and 0.74-0.97 respectively. The Cronbach's alpha for the total NEADLS score was also determined as 0.97. Test-retest intraclass correlation coefficients, determined as 0.97 in total score, ranged from 0.84-0.97 between items. The converging validity study for the NEADLS total score was correlated with the MBI and the r value was found statistically significant (r=0.84, p<0.0001).

CONCLUSIONS: The Turkish version of the NEADLS is a reliable and valid scale and can be used in activities of daily living assessment of Turkish elderly persons.