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June 14, 2026Cognitive DevelopmentOpen Access

How profiles of general intelligence change with age: A comprehensive model

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Authors

ΑΔΑνδρέας ΔημητρίουCyprus University of TechnologyNMNikolaos MakrisDemocritus University of ThraceGSGeorge SpanoudisUniversity of Cyprus

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Implication

Comprehensive model explores changes in intelligence profiles across ages 4 to 16, suggesting new developmental insights.

Key Points

  • The research investigates how general intelligence (g) changes with age through an analysis of cognitive processes.
  • Participants aged 4 to 16 (N=427) were assessed on executive function, reasoning, language, and cognizance.
  • Confirmatory Factor Analysis and Structural Equation Modeling were utilized to study the interplay of cognitive processes and the emergence of g.
  • The study develops a comprehensive model integrating psychometric, cognitive, and developmental theories of intelligence.
  • The analysis revealed that g consists of a relational integration-awareness core that evolves with development.
  • Findings suggest that latent abilities are both formative and reflective across different developmental stages.
  • Specific processes were shown to differentiate from g once formed, outlining distinct mediation patterns among cognitive processes.

Cite This Study

Δημητρίου et al. (2026) studied this question.

synapsesocial.com/papers/6a2e4429b1cc60ccdea8a091https://doi.org/10.1016/j.cogdev.2026.101735
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  4. 4Mapping Mind-Brain Development: Towards a Comprehensive Theory2020 · 36 citations