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g trumps specific cognitive abilities (Cognify SA Technical Suppliment)

20 July 2021

± minute read

    g trumps specific cognitive abilities (Cognify SA Technical Suppliment)
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Specific abilities do not provide much incremental validity over a general factor of cognitive ability when predicting general work performance (see our eChapter on using cognitive ability in selection).  JVR, in collaboration with Revelian, found evidence for a general factor of cognitive ability based on the six mini-games from Cognify in South Africa (see Technical Supplement).


Cognify is a game-based assessment of cognitive ability that assesses specific abilities such as Fluid reasoning (Gf), Visual-spatial processing (Gv), Quantitative knowledge (Gq), Comprehension-knowledge (Gc), Reading and writing (Grw), and Processing speed (Gs).


Cognify is reported to be a more engaging and enjoyable format when compared to traditional non-game-based assessments (see video for quick overview).  Professors Richard Landers’ presentation at an interdisciplinary workshop, highlights his findings based on independent research conducted with Cognify.  Professor Richard Landers is a world-renowned expert in gamification at Minnesota University.


P.S. The international technical manual with additional evidence on g in Cognify can be sent on request.

For more information, please contact us on +27(0) 11 781 3705/6/7 or send an email to

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