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The dimensionality of early executive functions in young preschoolers: Comparing unidimensional versus bidimensional models and their ecological validity.

Nicoletta SciontiGian Marco Marzocchi
Published in: Child neuropsychology : a journal on normal and abnormal development in childhood and adolescence (2021)
The study analyses the dimensionality of executive functions (EF) and its relationship with behavior in typically developing 3- and 4-year-old children. In study 1, confirmatory factor analysis (CFA) was used to investigate the validity of a one-factor model in 117 preschoolers. Since this model was not confirmed, a two-factor model was identified through exploratory factor analysis. In study 2, the validity of the new two-factor versus one-factor model was tested on a new sample of 128 children through a series of CFAs. The relationship between the models and specific behavioral aspects of the children was investigated. The results suggest that a bidimensional structure showed a better fit to the data and more ecological validity than a unitary structure.
Keyphrases
  • young adults
  • machine learning
  • electronic health record
  • artificial intelligence
  • high resolution
  • single molecule