Distinguishing specific from general effects in cognition research

Esther Maassen*, Jelte M. Wicherts

*Corresponding author for this work

Research output: Contribution to journalEditorialScientificpeer-review

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This is our commentary on the "What is IQ? Life Beyond "General Intelligence"" paper by Kovacs and Conway (2019- https://doi.org/10.1177/0963721419827275). We advocate for a latent variable approach in experimental research, and illustrate both conceptual and statistical benefits of using this approach in context of research on cognition. Benefits include the availability of more information about the constructs being measured, the ability to check for specific or general effects of covariates, and larger statistical power to detect mean differences between groups.
Original languageEnglish
Pages (from-to)288-292
JournalJournal of Applied Research in Memory and Cognition
Issue number3
Publication statusPublished - Sept 2019


  • multi-group confirmatory factor analysis
  • measurement bias
  • measurement invariance
  • mgcfa
  • cognition


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