PMID: 11316837Apr 24, 2001Paper

Measuring disability in nursing home residents: validity and reliability of a newly developed instrument

The Journals of Gerontology. Series B, Psychological Sciences and Social Sciences
M ValkG A Schrijvers

Abstract

A 24-item multidimensional nurse-administered Nursing Home Disabilities Instrument (NHDI) was developed to measure disabilities in nursing home residents. We present the psychometric features and value of this instrument, with the following domains assessed: Mobility, Activities of Daily Living (ADLs), Alertness, Resistance to Nursing Assistance, Incontinence, Cognition, and Test-retest and interrater reliability was assessed using the Spearman correlation coefficient. Internal consistency was examined by Cronbach's alpha. Criterion validity tests were performed by comparing the scales with scales of the Elderly Residents Rating Scale (BOP). Test-retest reliability correlation coefficients ranged from 0.63 to 0.94. Interrater reliability was high for the scales Cognition, Mobility, ADL, and Incontinence (0.79 to 0.93), moderate for Resistance (0.51), and low for Perception (0.33). Cronbach's alpha of the scales was high, ranging from 0.78 (Alertness) to 0.93 (Mobility); only Perception showed a low alpha: 0.54. Criterion validity was high for Cognition, ADL, and Mobility (0.75 to 0.78), and moderate for Alertness (0.59). The NHDI appears to be a valid and efficient multidimensional instrument for measuring disabilities in nursi...Continue Reading

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