Testování psychometrických vlastností a ekvivalence české verze škály spokojenosti se životem (SWLS) pomocí metod konfirmační faktorové analýzy, teorie odpovědi na položku a bayesovského modelování

• Authors: Radka Hanzlová , Petra Raudenská

Title variants

EN

Testing the psychometric properties and equivalence of the Czech version of the satisfaction with Life Scale (SWLS) using Confirmatory Factor Analysis, Item Response Theory, and Bayesian modelling

• Languages of publication: CS

Abstracts

EN

The Satisfaction with Life Scale (SWLS) is one of the most commonly used instruments for measuring life satisfaction. The aim of this study is to test the psychometric properties of the Czech version of the SWLS using Confirmatory Factor Analysis (CFA) and Item Response Theory (IRT) and to test its invariance between social groups in terms of gender, age, and education using Bayesian modelling on a representative sample of the Czech online population, as the scale has not yet been tested on representative data in the Czech Republic. The research sample consists of 960 respondents aged 18 to 69 years. The results confirmed that the psychometric properties of the Czech version of the SWLS are very good, but, at the same time, it is evident that the fifth item shows worse results than the other four items. In terms of dimensionality, CFA and IRT confirmed its modified single-factor structure with correlated residuals between the fourth and fifth items as the most appropriate. Testing for approximate measurement invariance using Bayesian modelling showed that the SWLS measures comparably between groups based on gender, age, and education. In conclusion, the Czech version of the SWLS is a suitable, verified, and reliable instrument for measuring the life satisfaction of Czech citizens.

Keywords

EN

SWLS; Confirmatory Factor Analysis (CFA); Item Response Theory (IRT); Bayesian modelling BSEM; psychometrics; measurement invariance

Discipline

• SOCIOLOGY: SOCIOLOGY

• Publisher: Institute of Sociology, Czech Academy of Sciences
• Journal: Sociologický časopis. Czech Sociological Review
• Year: 2024
• Volume: 60
• Issue: 1
• Pages: 37-66
• Document type: ARTICLE

Contributors

author

Radka Hanzlová

• Sociologický časopis, redakce, Sociologický ústav AV ČR, v.v.i., Jilská 1, 110 00 Praha 1, Czech Republic

author

Petra Raudenská

• Sociologický časopis, redakce, Sociologický ústav AV ČR, v.v.i., Jilská 1, 110 00 Praha 1, Czech Republic