Psychometric Evaluation of the Beliefs About Stress Scale in the German General Population

Area of Science:

• Psychology
• Health Psychology
• Psychometrics

Background:

• Beliefs about stress significantly impact health outcomes.
• Understanding stress mindsets is crucial for developing effective health interventions.
• Economical and reliable scales are needed to assess stress beliefs.

Purpose of the Study:

• To assess the Beliefs About Stress Scale (BASS) in a large German sample.
• To evaluate the factorial validity and measurement invariance of the BASS.
• To examine the convergent and discriminant validity of the BASS.

Main Methods:

• Confirmatory factor analysis was used to evaluate the factorial validity of the BASS.
• Measurement invariance testing was conducted across demographic groups.
• Associations between the BASS and related constructs were analyzed.

Main Results:

• The BASS demonstrated strong factorial validity, with a bifactor model showing a superior fit.
• Measurement invariance was confirmed across demographics, suggesting stability.
• Positive stress beliefs (controllability, benefits) linked to better psychological outcomes, while negative beliefs correlated with poorer mental health.

Conclusions:

• The BASS is a valid and reliable instrument for population-level research and clinical use.
• The scale aids in understanding how stress mindsets influence stress regulation.
• Findings support the development of mindset-based interventions to promote adaptive stress perceptions and mitigate health risks.