An Item Response Theory Analysis and Psychometric Properties of the Czech Version of the Satisfaction with Life Scale
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11210%2F22%3A10451352" target="_blank" >RIV/00216208:11210/22:10451352 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=..mLNLpOKk" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=..mLNLpOKk</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.18148/srm/2022.v16i3.7940" target="_blank" >10.18148/srm/2022.v16i3.7940</a>
Alternative languages
Result language
angličtina
Original language name
An Item Response Theory Analysis and Psychometric Properties of the Czech Version of the Satisfaction with Life Scale
Original language description
The original version of the Satisfaction with Life Scale (SWLS) has been successfully tested in many studies, mainly using Classical Test Theory (CTT). Using Item Response Theory (IRT), this study examines psychometric properties of the original SWLS comprising five items, and its abbreviated versions and possible usage of a shorter response scale in a Czech data sample. IRT analysis was used to test the psychometric properties of the original SWLS, comprising five items rated on a 7-point Likert scale, and its results were compared the abbreviated version with four (SWLS-4) and three items (SWLS-3) and was also applied to evaluate the adequacy of the response scale's length. For the analysis, data from a representative sample of the Czech population older than 18 years were used (N = 1; 000). The results showed that all the three tested versions of the SWLS reached excellent psychometric properties, including unidimensionality, with slight dierences between them. Further testing of the response scale's adequacy indicates that shortening the response categories from seven to five will be appropriate. The results of this Czech study show that abbreviated versions of the SWLS can be used interchangeably without impacting its psychometric qualities. The results also confirm that a shorter response scale is appropriate for the application. The findings from measurement invariance indicate that the SWLS allows meaningful comparisons in life satisfaction across gender and age.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
50401 - Sociology
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Survey Research Methods [online]
ISSN
1864-3361
e-ISSN
1864-3361
Volume of the periodical
16
Issue of the periodical within the volume
3
Country of publishing house
DE - GERMANY
Number of pages
15
Pages from-to
371-385
UT code for WoS article
000917739600006
EID of the result in the Scopus database
2-s2.0-85143810386