Kevin M. Duff

Convergent validity of measures of daily functioning in older adults

INTRODUCTION: Although information on daily functioning is needed for accurate diagnoses of neurocognitive disorders, little has been published on the psychometric properties of measures of daily functioning. Convergent validity is one such psychometric property that examines the...

One-week changes on the Independent Living Scales in older adults: Proof of concept for quantifying subtle functional decline

Objective: Identifying subtle change in daily functioning is important for diagnosing late life cognitive disorders. This proof-of-concept study sought to develop standardized regression-based (SRB) equations for the Independent Living Scales (ILS) and examine their application i...