Assessing the Unidimensionality of Trait Reactance Using a Multifaceted Model Assessment Approach

Area of Science:

• Psychology
• Personality Science
• Psychometrics

Background:

• The Hong Psychological Reactance Scale (HPRS) is widely used to measure trait reactance.
• Previous research has shown confusion regarding HPRS scoring and modeling, alongside limited external validity evidence.

Purpose of the Study:

• To investigate the dimensionality and nomological network of the HPRS.
• To address confusion surrounding HPRS scoring and modeling.
• To provide evidence for the external validity of the HPRS.

Main Methods:

• Employed a multifaceted model assessment approach.
• Tested competing factor models (bifactor vs. 1-factor) using confirmatory factor analysis.
• Examined relationships between HPRS factor models and key personality traits.
• Cross-validated results.

Main Results:

• Confirmatory factor analysis supported a bifactor model for the HPRS.
• Trait reactance, when modeled using the bifactor approach, showed expected negative relationships with agreeableness, conscientiousness, and conformity, and a positive relationship with entitlement.
• Despite better model-data fit with the bifactor model, relationships with external variables differed negligibly between the bifactor and 1-factor models.
• Bifactor indices indicated that HPRS scores are essentially unidimensional.

Conclusions:

• The bifactor model provides a superior fit for the HPRS compared to a 1-factor model.
• HPRS scores can be treated as unidimensional, simplifying their application.
• Findings clarify the scoring and use of the HPRS, enhancing its utility in psychological research.