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Exploring a new application of construct specification equations (CSEs) and entropy: a pilot study with balance measurements
Measurement Science and Technology Unit, Division of Safety and Transport, RISE Research Institutes of Sweden, Gothenburg, Sweden; Department of Leadership, Demand and Control, Swedish Defence University, Karlstad, Sweden.
Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Avdelningen för fysioterapi.
Department of Health Sciences, Lund University, Lund, Sweden.
Division of Geriatric Medicine, Skåne University Hospital, Jan Waldenströms gata 35, Malmö, Sweden.
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2023 (Engelska)Ingår i: Entropy, E-ISSN 1099-4300, Vol. 25, nr 6, artikel-id 940Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Both construct specification equations (CSEs) and entropy can be used to provide a specific, causal, and rigorously mathematical conceptualization of item attributes in order to provide fit-for-purpose measurements of person abilities. This has been previously demonstrated for memory measurements. It can also be reasonably expected to be applicable to other kinds of measures of human abilities and task difficulty in health care, but further exploration is needed about how to incorporate qualitative explanatory variables in the CSE formulation. In this paper we report two case studies exploring the possibilities of advancing CSE and entropy to include human functional balance measurements. In case study I, physiotherapists have formulated a CSE for balance task difficulty by principal component regression of empirical balance task difficulty values from Berg’s Balance Scale transformed using the Rasch model. In case study II, four balance tasks of increasing difficulty due to diminishing bases of support and vision were briefly investigated in relation to entropy as a measure of the amount of information and order as well as physical thermodynamics. The pilot study has explored both methodological and conceptual possibilities and concerns to be considered in further work. The results should not be considered as fully comprehensive or absolute, but rather open up for further discussion and investigations to advance measurements of person balance ability in clinical practice, research, and trials.

Ort, förlag, år, upplaga, sidor
MDPI, 2023. Vol. 25, nr 6, artikel-id 940
Nyckelord [en]
metrology, Rasch model, task difficulty, validation
Nationell ämneskategori
Sjukgymnastik
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URN: urn:nbn:se:umu:diva-212043DOI: 10.3390/e25060940ISI: 001017451400001PubMedID: 37372284Scopus ID: 2-s2.0-85163886265OAI: oai:DiVA.org:umu-212043DiVA, id: diva2:1782962
Tillgänglig från: 2023-07-18 Skapad: 2023-07-18 Senast uppdaterad: 2023-07-18Bibliografiskt granskad

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Fridberg, Helena

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