Overconfidence
Proposition of a Measurement Scale
DOI:
https://doi.org/10.22478/ufpb.2238-104X.2026v16n1.74018Keywords:
Overconfidence, Measurement scale, Cognitive biasAbstract
Purpose: To propose a scale to measure overconfidence in financial knowledge. Methodology: A methodology appropriate for the construction of self-report instruments was used, where multivariate data methods were employed, with application of the proposed instrument, exploratory factor analysis, confirmatory factor analysis, multivariate analysis and discriminant analysis. Main results: The results obtained from the adopted instrument construction procedures showed that the proposed scale presented satisfactory psychometric properties. Academic contributions: The discussion of overconfidence in financial knowledge, little explored in the literature, stands out as an academic contribution. Practical contributions: The practical contribution of the study is the development and validation of an instrument to measure overconfidence in financial knowledge.
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