Psychologists can isolate innate intelligence from educational attainment in testing
Psychometric and genetic research routinely distinguishes between innate or fluid cognitive abilities and later educational attainment, demonstrating that they can be differentiated empirically.
The claim passes Step 0 as a specific, empirical, and testable assertion about psychometric testing and cognitive research. The provided literature repeatedly separates fluid intelligence, general cognitive ability, and genetic predictors thereof from educational attainment and crystallized measures (e.g., Papers 0, 1, 7, and 10), supporting the feasibility of isolating these constructs.
M. Rask-Andersen, T. Karlsson, W. Ek, Å. Johansson. Modification of Heritability for Educational Attainment and Fluid Intelligence by Socioeconomic Deprivation in the UK Biobank.. 2021. https://doi.org/10.1176/appi.ajp.2020.20040462
Study examines fluid intelligence and educational attainment separately as distinct genetic and phenotypic traits.
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R. Loughnan, C. Palmer, W. Thompson, A. Dale, T. Jernigan, Chun Chieh Fan. Intelligence Polygenic Score Is More Predictive of Crystallized Measures: Evidence From the Adolescent Brain Cognitive Development (ABCD) Study. 2023. https://doi.org/10.1177/09567976231160702
Distinguishes between crystallized cognitive measures and genetic predictors of educational attainment versus intelligence test performance.
Tobias Wolfram, Spencer Moore, Jeremiah H. Li, Jonathan Anomaly, Ivan Davidson, Michael Christensen. Interpreting Polygenic Prediction of Cognitive Ability: Evidence for Direct, Reliable, and Portable Genetic Effects. 2026. https://doi.org/10.65550/001c.158459
Utilizes within-family genomic designs to isolate direct genetic effects on general cognitive ability from educational outcomes.
Gavalova G, Laukka P, Högman L, Källman MV, Kristiansson M, Wallinius M, Fischer H, Johansson AGM. Emotion recognition misclassification patterns in individuals with psychotic spectrum disorders and history of interpersonal aggression.. 2026. https://doi.org/10.1038/s41537-026-00776-5
Controls for educational attainment while identifying fluid intelligence as an independent predictor of task accuracy.
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