ArticleBMC geriatrics2016
Item distribution, internal consistency and inter-rater reliability of the German version of the QUALIDEM for people with mild to severe and very severe dementia.
Article in BMC geriatrics, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed.
- Trial
- Urban-rural differences in the health care of people living with dementia and mild cognitive impairment in shared-housing arrangements in Germany - have inequities in urban vs. rural locations been overcome?BMC health services research · 2025Trial
- Non-pharmacological, psychosocial MAKS-s intervention for people with severe dementia in nursing homes: results of a cluster-randomised trial.BMC geriatrics · 2022Trial
- Item distribution and inter-rater reliability of the German version of the quality of life in Alzheimer's disease scale (QoL-AD) proxy for people with dementia living in nursing homes.BMC geriatrics · 2018Trial
- Determinants of quality of life in French nursing home residents across cognitive levels: a comparative study using convergent mixed-methods.BMC geriatrics · 2024Article
- Agitation and aggression in people living with dementia and mild cognitive impairment in shared-housing arrangements - validation of a German version of the Cohen-Mansfield Agitation Inventory-Short Form (CMAI-SF).Health and quality of life outcomes · 2023Article
- Item distribution, scalability and internal consistency of the QUALIDEM quality of life assessment for patients with dementia in acute hospital settings.Health and quality of life outcomes · 2023Article
- Inter-rating reliability of the Swiss easy-read integrated palliative care outcome scale for people with dementia.PloS one · 2023Article
- Effects of an individualised nutritional intervention to tackle malnutrition in nursing homes: a pre-post study.European geriatric medicine · 2022Article
- Improving caring quality for people with dementia in nursing homes using IPOS-Dem: A stepped-wedge cluster randomized controlled trial protocol.Journal of advanced nursing · 2021Article
- Article
- Article
- The MAKS-s study: multicomponent non-pharmacological intervention for people with severe dementia in inpatient care - study protocol of a randomised controlled trial.BMC geriatrics · 2020Article
- Application of Marte Meo® counselling with people with behavioural variant frontotemporal dementia and their primary carers (AMEO-FTD) - a non-randomized mixed-method feasibility study.Pilot and feasibility studies · 2020Article
- Article
- Quality of life in small-scaled homelike nursing homes: an 8-month controlled trial.Health and quality of life outcomes · 2018Article
- A novel method of proxy reporting questionnaire based measures of health-related quality of life of people with dementia in residential care: a psychometric evaluation.Patient related outcome measures · 2018Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe QUALIDEM is a dementia-specific Quality of life (Qol) instrument that is recommended for longitudinal studies and advanced stages of dementia. Our study aimed to develop a user guide for the German version of the QUALIDEM and to determine the item distribution, internal consistency and inter-rater reliability (IRR) of the German QUALIDEM.
methodsA user guide was developed based on cognitive interviews with ten professional caregivers and a focus group with six professional caregivers. The item distribution, internal consistency and IRR were evaluated through a field test including n = 55 (mild to severe dementia) and n = 36 (very severe dementia) residents from nine nursing homes. Individuals with dementia were assessed four times by blinded proxy raters.
resultsA user guide with instructions for the application of the QUALIDEM and definitions and examples for each item was created. Based on the single-measure intra-class correlation coefficient (ICC for absolute agreement), we observed strong IRR for nearly all of the QUALIDEM subscales, with ICCs of at least 0.79. A lower ICC (ICC = 0.64) was only obtained for people with very severe dementia on the 'negative affect' subscale.
conclusionsThe IRR improved based on the application of the QUALIDEM user guide developed in this study. We demonstrated a sufficient IRR for all subscales of the German version of the QUALIDEM, with the exception of the 'negative affect' subscale in the subsample of people with very severe dementia. The item distribution and internal consistency results highlight the need to develop new informative items for some subscales.
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