Rasch analysis of an instrument for measuring occupational value: Implications for theory and practice
Abstract
This study investigated psychometric properties of an instrument for assessing perceived occupational value, the 26-item OVal-pd. Data from 225 Swedish subjects with and without known mental illness were analysed regarding fit to the Rasch measurement model (partial credit model), differential item functioning (DIF), and functioning of the OVal-pd four-category response scale. The reliability (index of person separation, analogous to Cronbach's alpha) was good (0.92) but there were signs of overall and item level (six items) misfit. There was DIF between people with and without mental illness for three items. Iterative deletion of misfitting items resulted in a new 18-item DIF-free scale with good overall and individual item fit and maintained reliability (0.91). There were no disordered response category thresholds. These observations also held true in separate analyses among people with and without mental illness. Thus, the first steps of ensuring that occupational value can be measured in a valid and reliable way have been taken. Still, occupational value is a dynamic construct and the aspects that fit the construct may vary between contexts. This has implications for, e.g., cross-cultural research and calls for identification of a core set of culture-free items to allow for valid cross-cultural comparisons.
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The OVal-pd has been shown to have good validity and reliability.
“The OVal-pd has been shown to have good validity and reliability (29).”
From Factors influencing subjective perceptions of everyday occupations: Comparing day centre attendees with non-attendees (2012) · cites this paper as [29]
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“Also, combining the OBQ11 with measures of occupational meaning or value, such as the Occupational Value Assessment with predefined items (OVal-pd) [35], and measures of the social environment [36] is likely a feasible approach to capture a wider array of”
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- Authors
- Eklund, M., Erlandsson, L.-K., Persson, D., & Hagell, P.
- Affiliations
- Malmö University (SE)
- Lund University (SE)
- Corresponding author
- Eklund, Mona
- Venue
- Scandinavian Journal of Occupational Therapy
- Published
- 2009-01
- Volume
- 16
- Issue
- 2
- Pages
- 118-128
- ISSN
- 1103-8128 (ISSN-L)
- 1651-2014
- OpenAlex
- W2073224505
- Cited by
- 65
- References
- 35
- Citations by year
- 2026: 2 · 2025: 5 · 2024: 2 · 2023: 5 · 2022: 2 · 2021: 6 · 2020: 3 · 2019: 4 · 2018: 1 · 2017: 3 · 2016: 2 · 2015: 2 · 2014: 5 · 2013: 6 · 2012: 6
- FWCI
- 5.62
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Scandinavian Journal of Occupational Therapy (publishedVersion)
- PubMed (publishedVersion)
- Lund University Publications (Lund University) (submittedVersion)
- Malmö University Publications (Malmö University) (submittedVersion)
- Funders
- Vetenskapsrådet
- Topics
- Social Sciences › Decision Sciences › Management Science and Operations Research › Psychometric Methodologies and Testing
- Health Sciences › Health Professions › Occupational Therapy › Occupational Therapy Practice and Research
- Social Sciences › Psychology › Applied Psychology › Psychological Testing and Assessment
- Keywords
- work values, mental illness, psychometric properties, Rasch model, partial credit model, differential item functioning, scale validation, item misfit, cross-cultural measurement, occupational therapy
- MeSH terms
- Adult, Mental Disorders, Community Mental Health Services, Factor Analysis, Statistical, Female, Humans, Male, Middle Aged, Models, Psychological, Occupational Therapy, Occupations, Outpatients, Professional Practice, Psychometrics, Sweden, Reproducibility of Results, Sickness Impact Profile
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