Assessing System Justification in Czech Population Using the System Justification Scale

Area of Science:

• Social Psychology
• Sociology
• Psychometrics

Background:

• System justification (SJ) is a well-established social psychology construct.
• SJ explains how individuals perceive fairness, evaluate societal conditions, and accept social order.
• SJ applies to both advantaged and disadvantaged groups, potentially mitigating negative perceptions of inequality.

Purpose of the Study:

• To translate and validate the System Justification Scale (SJS) for use in the Czech population.
• To provide comprehensive psychometric data on the SJS, including internal consistency, unidimensionality, and construct validity.

Main Methods:

• Exploratory and confirmatory factor analysis.
• Internal consistency assessment, analysis of variance, and correlation analysis.
• Face-to-face survey data from 1419 Czech adults (aged 18-79).

Main Results:

• The translated SJS demonstrated high internal consistency.
• The scale exhibited robust psychometric properties, including adequate discrimination of system justification levels.
• Factor analysis confirmed the scale's structure and validity.

Conclusions:

• The Czech version of the SJS is a psychometrically sound instrument.
• The validated SJS is recommended for future research on system justification and perceived quality of life.