International journal of geriatric psychiatry
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Int J Geriatr Psychiatry · Jul 2017
Limited validity of the Hospital Anxiety and Depression Scale (HADS) in dementia: evidence from a confirmatory factor analysis.
The Hospital Anxiety and Depression Scale (HADS) is a well-validated, self-report measure of both anxiety and depression. It is frequently used with people with dementia. However, its structural validity has never been examined in this population. The current study used confirmatory factor analysis (CFA) to assess this. ⋯ The HADS is acceptable and feasible but difficult to interpret in a dementia population. We suggest that it should be interpreted as measuring two separate factors of anxiety and depression and not one 'distress' factor. However, two items may need to be removed, affecting cut-off scores. Poor measurement invariance means the HADS may not be a good tool for measuring differences in anxiety and depression between those with mild and those with moderate cognitive impairment. Copyright © 2016 John Wiley & Sons, Ltd.
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Int J Geriatr Psychiatry · Jul 2017
Reliability and validity of a self-administration version of DEMQOL-Proxy.
This study aimed to investigate the reliability and validity of a self-administered version of DEMQOL-Proxy, a disease-specific instrument that measures health-related quality of life in people with dementia. ⋯ DEMQOL-Proxy (self-administered) has comparable acceptability, reliability and validity with DEMQOL-Proxy (interviewer administered). DEMQOL-Proxy (self-administered) can be used in a wider variety of contexts than its interviewer-administered version, including routine use in busy clinics. Copyright © 2016 John Wiley & Sons, Ltd.