The 8-Factor reasoning styles scale: development, validation, and psychometric evaluation

Area of Science:

• Cognitive Psychology
• Educational Psychology
• Philosophy of Science

Background:

• Builds upon Hacking's "styles of reasoning" concept.
• Operationalizes eight theoretically derived reasoning styles.
• Utilizes orthogonal intersections: Empirical ↔ Hypothetical, Metaphorical ↔ Analogical, Inductive ↔ Deductive.

Purpose of the Study:

• Develop and validate the Eight-Factor Reasoning Styles Scale (8-FRSS).
• Provide a psychometrically robust measure for diverse reasoning styles.
• Assess the scale's reliability and concurrent validity.

Main Methods:

• Generated 40 items based on the Reasoning Style Model.
• Conducted Exploratory Factor Analysis (EFA) on 441 participants.
• Performed Confirmatory Factor Analysis (CFA) on two independent samples (n=316, n=604) using DWLS.
• Assessed reliability (Cronbach's α, McDonald's ω) and concurrent validity against the TSI-TR.

Main Results:

• EFA confirmed an eight-factor solution explaining 58.2% of variance.
• CFA demonstrated good factorial stability across student and community samples.
• Six subscales met reliability standards; two require revision.
• High total-scale reliability (ω=0.93) and significant concurrent validity were observed.

Conclusions:

• The 8-FRSS is the first psychometrically sound instrument measuring empirical-hypothetical, metaphorical-analogical, and inductive-deductive reasoning.
• Factorial stability, reliability, and validity support its use in educational, cognitive, and decision-science research.
• Future research should refine specific factors and explore predictive validity.