The sensitivity to change over time of the Amsterdam IADL Questionnaire<sup>©</sup>

Koster, Naomi; Knol, Dirk L.; Uitdehaag, Bernard M. J.; Scheltens, Philip; Sikkes, Sietske A.M.

doi:10.1016/j.jalz.2014.10.006

Cited by 41 publications

(55 citation statements)

References 39 publications

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“…Modern psychometric approaches (item response theory) are applied for the scoring of the questionnaire, enabling scoring of different activities for different individuals on the same metric. In a longitudinal construct validation study, the Amsterdam IADL questionnaire was found to be sensitive to changes over time, supporting its usefulness for longitudinal studies [118]. …”

Section: Resultsmentioning

confidence: 99%

The need for harmonisation and innovation of neuropsychological assessment in neurodegenerative dementias in Europe: consensus document of the Joint Program for Neurodegenerative Diseases Working Group

et al. 2017

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Cognitive, behavioural, and functional assessment is crucial in longitudinal studies of neurodegenerative dementias (NDD). Central issues, such as the definition of the study population (asymptomatic, at risk, or individuals with dementia), the detection of change/decline, and the assessment of relevant outcomes depend on quantitative measures of cognitive, behavioural, and functional status.Currently, we are far from having available reliable protocols and tools for the assessment of dementias in Europe. The main problems are the heterogeneity of the tools used across different European countries, the lack of standardisation of administration and scoring methods across centres, and the limited information available about the psychometric properties of many tests currently in widespread use. This situation makes it hard to compare results across studies carried out in different centres, thus hampering research progress, in particular towards the contribution to a “big data” common data set.We present here the results of a project funded by the Joint Program for Neurodegenerative Diseases (JPND) and by the Italian Ministry of Health. The project aimed at providing a consensus framework for the harmonisation of assessment tools to be applied to research in neurodegenerative disorders affecting cognition across Europe. A panel of European experts reviewed the current methods of neuropsychological assessment, identified pending issues, and made recommendations for the harmonisation of neuropsychological assessment of neurodegenerative dementias in Europe.A consensus was achieved on the general recommendations to be followed in developing procedures and tools for neuropsychological assessment, with the aim of harmonising tools and procedures to achieve more reliable data on the cognitive-behavioural examination. The results of this study should be considered as a first step to enhancing a common view and practise on NDD assessment across European countries.

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Section: Resultsmentioning

confidence: 99%

The need for harmonisation and innovation of neuropsychological assessment in neurodegenerative dementias in Europe: consensus document of the Joint Program for Neurodegenerative Diseases Working Group

et al. 2017

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“…Some studies have found that informant and self-reported measures typically yield small or no associations with executive processes (Aretouli and Brandt, 2010;Jefferson et al, 2006;Plehn et al, 2004). In a more recent study, a longer time spent on TMT B was associated with a lower score on the A-IADL-Q, and a model incorporating DSB indicated a satisfactory fit when testing the relationship between change in IADL and change in memory functioning (Koster et al, 2015). There are limited studies exploring the relationship between the ACE III and IADL measures; research that has been done suggests that the ACE III is sensitive to everyday functioning (Giebel and Challis, 2017;Hsieh et al, 2013;Scally, 2016), but this is based on small sample sizes.…”

Section: Discussionmentioning

confidence: 96%

Enhancing ‘meaningfulness’ of functional assessments: UK adaptation of the Amsterdam IADL questionnaire

Stringer

Leroi

Sikkes

et al. 2020

Int. Psychogeriatr.

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Objective: Commonly used measures of instrumental activities of daily living (IADL) do not capture activities for a technologically advancing society. This study aimed to adapt the proxy/informant-based Amsterdam IADL Questionnaire (A-IADL-Q) for use in the UK and develop a self-report version.Design: An iterative mixed method cross-cultural adaptation of the A-IADL-Q and the development of a self-report version involving a three-step design: (1) interviews and focus groups with lay and professional stakeholders to assess face and content validity; (2) a questionnaire to measure item relevance to older adults in the U.K.; (3) a pilot of the adapted questionnaire in people with cognitive impairment.Setting: Community settings in the UK.Participants: One hundred and forty-eight participants took part across the three steps: (1) 14 dementia professionals; 8 people with subjective cognitive decline (SCD), mild cognitive impairment (MCI), or dementia due to Alzheimer's disease; and 6 relatives of people with MCI or dementia; (2) 92 older adults without cognitive impairment; and (3) 28 people with SCD or MCI. Measurements:The cultural relevance and applicability of the A-IADL-Q scale items were assessed using a 6-point Likert scale. Cognitive and functional performance was measured using a battery of cognitive and functional measures.Results: Iterative modifications to the scale resulted in a 55-item adapted version appropriate for UK use (A-IADL-Q-UK). Pilot data revealed that the new and revised items performed well. Four new items correlated with the weighted average score ). An exploratory analysis of convergent validity found correlations in the expected direction with cognitive and functional measures. Conclusion:The A-IADL-Q-UK provides a measurement of functional decline for use in the UK that captures culturally relevant activities. A new self-report version has been developed and is ready for testing. Further evaluation of the A-IADL-Q-UK for construct validity is now needed.

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“…While another approach to evaluating responsiveness relies on patient self‐reported change anchors obtained at a fixed time point, this was not possible in our retrospective analysis of clinical data. Mixed‐effects modeling has been used previously to assess longitudinal responsiveness of a measure and was used to model the relationship between changes in CDAI and changes in PF10a score. Among our entire eligible clinic population, we found that a 12‐point increase in CDAI was associated with a 2.93‐point decrease in PF10a, and a 12‐point decrease in CDAI was associated with a 2.70‐point increase in PF10a.…”

Section: Discussionmentioning

confidence: 99%

Effects of Language, Insurance, and Race/Ethnicity on Measurement Properties of the PROMIS Physical Function Short Form 10a in Rheumatoid Arthritis

Izadi

Katz

Schmajuk

et al. 2019

Arthritis Care & Research

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The sensitivity to change over time of the Amsterdam IADL Questionnaire^©

Abstract: Findings indicate the A-IADL-Q is sensitive to change over time in IADL functioning and can be used in evaluating treatment effects and assessing individual disease progress.

Cited by 41 publications

References 39 publications

The need for harmonisation and innovation of neuropsychological assessment in neurodegenerative dementias in Europe: consensus document of the Joint Program for Neurodegenerative Diseases Working Group

The need for harmonisation and innovation of neuropsychological assessment in neurodegenerative dementias in Europe: consensus document of the Joint Program for Neurodegenerative Diseases Working Group

Enhancing ‘meaningfulness’ of functional assessments: UK adaptation of the Amsterdam IADL questionnaire

Effects of Language, Insurance, and Race/Ethnicity on Measurement Properties of the PROMIS Physical Function Short Form 10a in Rheumatoid Arthritis

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The sensitivity to change over time of the Amsterdam IADL Questionnaire©

Abstract: Findings indicate the A-IADL-Q is sensitive to change over time in IADL functioning and can be used in evaluating treatment effects and assessing individual disease progress.

Cited by 41 publications

References 39 publications

The need for harmonisation and innovation of neuropsychological assessment in neurodegenerative dementias in Europe: consensus document of the Joint Program for Neurodegenerative Diseases Working Group

The need for harmonisation and innovation of neuropsychological assessment in neurodegenerative dementias in Europe: consensus document of the Joint Program for Neurodegenerative Diseases Working Group

Enhancing ‘meaningfulness’ of functional assessments: UK adaptation of the Amsterdam IADL questionnaire

Effects of Language, Insurance, and Race/Ethnicity on Measurement Properties of the PROMIS Physical Function Short Form 10a in Rheumatoid Arthritis

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The sensitivity to change over time of the Amsterdam IADL Questionnaire^©