Perceived Cognitive Assistance (PCA) in LLM-Augmented Retail Trading: Confirmatory Factor Analysis and Model Testing (Wave 2)

Pre-registration for Wave 2 (CFA) of a scale-development project validating a 9-item Perceived Cognitive Assistance (PCA) measure for LLM-augmented retail trading. Tests measurement model confirmation, discriminant validity from perceived usefulness, and predictive validity for complexity-intention outcomes. Builds on Study 1 (qualitative), Study 2 (content validation, N = 48), and Wave 1 (EFA pilot, N = 69).