Journal of clinical epidemiology
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We examined the reliability and validity of self-reported limitations encountered in the activities of daily living (ADL) as measure of functional performance, for Turkish, Moroccan, and indigenous Dutch elderly in the Netherlands. ⋯ Katz' ADL index is valid to assess functional performance of Turkish, Moroccan, and Dutch elderly, but comparisons with Moroccan elderly should be handled with caution. The explanation of these findings and their generalizability to other ethnic groups deserve further study.
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To determine whether a single question with a Likert Scale or a Visual Analog Scale (VAS) response adequately measures current anxiety. ⋯ A single question with either a Likert Scale or VAS response may be an adequate replacement for the STAI. Both measures quickly and easily assess anxiety and may be useful for research purposes when researchers have very limited time or questionnaire space or need to reduce the burden on participants of completing many measures.