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Psychometric properties of the Bern illegitimate tasks scale using classical test and item response theories
Faculty of Management and Economics, Gdansk University of Technology, Narutowicza 11/12, Gdańsk (POL).
University West, Department of Social and Behavioural Studies, Division of Psychology, Pedagogy and Sociology.ORCID iD: 0000-0002-8562-5610
2023 (English)In: Scientific Reports, E-ISSN 2045-2322, Vol. 13, no 1, article id 7211Article in journal (Refereed) Published
Abstract [en]

Combining a classical test theory and an item response theory (IRT), this study aimed to investigate the psychometric properties of the Bern Illegitimate Tasks Scale (BITS) by measuring two conceptually separate dimensions capturing unnecessary tasks (perceived by employees as pointless) and unreasonable tasks (perceived as unfairly or inappropriately assigned). Data collected among Polish employees in two samples (N= 965 and N= 803) were analysed. Results from the classical test theory (parallel analysis, exploratory and confrmatory factor analyses) indicated two correlated factors with four items each, confrming the theory of illegitimate tasks. This study is the frst to report item and scale functioning using IRT analysis of each of the two dimensions of BITS. All items on each dimension had acceptable discrimination and difculty parameters. Moreover, items had measurement invariance between men and women. All levels of unnecessary and unreasonable tasks were reliably captured by BITS items. Convergent and discriminant validities of both dimensions of BITS were confrmed in relation to work overload, work performance and occupational wellbeing. We conclude that BITS, in the case of the Polish version, is psychometrically suitable to use with the working population.

Place, publisher, year, edition, pages
2023. Vol. 13, no 1, article id 7211
Keywords [en]
classical test, tasks scale, psychometric
National Category
Applied Psychology
Identifiers
URN: urn:nbn:se:hv:diva-20060DOI: 10.1038/s41598-023-34006-0ISI: 000984935100044PubMedID: 37137932Scopus ID: 2-s2.0-85159548407OAI: oai:DiVA.org:hv-20060DiVA, id: diva2:1776189
Note

CC-BY 4.0

Tis study was funded by the National Science Centre, Poland (grant number 2017/26/M/HS6/00451)

Available from: 2023-06-27 Created: 2023-06-27 Last updated: 2024-04-10

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Dåderman, Anna Maria

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