An item sorting heuristic to derive equivalent parallel test versions from multivariate items.

Göbel, Nicole; Cazzoli, Dario; Gutbrod, Clemens; Müri, René M; Eberhard-Moscicka, Aleksandra K (2023). An item sorting heuristic to derive equivalent parallel test versions from multivariate items. PLoS ONE, 18(4), e0284768. Public Library of Science 10.1371/journal.pone.0284768

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Parallel test versions require a comparable degree of difficulty and must capture the same characteristics using different items. This can become challenging when dealing with multivariate items, which are for example very common in language or image data. Here, we propose a heuristic to identify and select similar multivariate items for the generation of equivalent parallel test versions. This heuristic includes: 1. inspection of correlations between variables; 2. identification of outlying items; 3. application of a dimension-reduction method, such as for example principal component analysis (PCA); 4. generation of a biplot, in case of PCA of the first two principal components (PC), and grouping the displayed items; 5. assigning of the items to parallel test versions; and 6. checking the resulting test versions for multivariate equivalence, parallelism, reliability, and internal consistency. To illustrate the proposed heuristic, we applied it exemplarily on the items of a picture naming task. From a pool of 116 items, four parallel test versions were derived, each containing 20 items. We found that our heuristic can help to generate parallel test versions that meet requirements of the classical test theory, while simultaneously taking several variables into account.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Neurology
07 Faculty of Human Sciences > Institute of Psychology
04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR) > DCR Unit Sahli Building > Forschungsgruppe Neurologie
10 Strategic Research Centers > ARTORG Center for Biomedical Engineering Research
10 Strategic Research Centers > ARTORG Center for Biomedical Engineering Research > ARTORG Center - Gerontechnology and Rehabilitation

UniBE Contributor:

Göbel, Nicole, Cazzoli, Dario, Müri, René Martin, Eberhard-Moscicka, Aleksandra Katarzyna

Subjects:

600 Technology > 610 Medicine & health
100 Philosophy > 150 Psychology
500 Science > 570 Life sciences; biology

ISSN:

1932-6203

Publisher:

Public Library of Science

Language:

English

Submitter:

Pubmed Import

Date Deposited:

26 Apr 2023 10:48

Last Modified:

07 Jan 2024 02:22

Publisher DOI:

10.1371/journal.pone.0284768

PubMed ID:

37098026

BORIS DOI:

10.48350/181989

URI:

https://boris.unibe.ch/id/eprint/181989

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