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The Edinburgh Feeding Evaluation in Dementia Scale: A longitudinal study in nursing home residents (Accepted 12th June 2017)

The Edinburgh Feeding Evaluation in Dementia Scale: A longitudinal study in nursing home residents (Accepted 12th June 2017)

Aims/background

The Edinburgh Feeding Evaluation in Dementia (EdFED) scale has been shown to have good psychometric properties using a range of methods including Mokken scaling. We aimed to study the Italian version of the EdFED using Mokken scaling.

Methods

Data were gathered at 7 time points from 401 nursing home residents affected by dementia in the course of a 6-month intervention study using analysis of variance, Mokken scaling, and person-item fit statistics.

Results

The properties of the EdFED-I scale were stable over the course of the study with 4 items showing invariant item ordering at all time points. Some items behaved differently at different levels of difficulty in the scale and also depending on the mean level of feeding difficulty. The test information function showed a dip in the mid-range of difficulty scores.

Keywords

Dementia; Edinburgh Feeding Evaluation in Dementia scale; Feeding; Item response theory; Mokken scaling.

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