Gains in fluid intelligence after training non-verbal reasoning in 4-year-old children: A controlled randomized study

Institution: Karolinska Institute

Title: Gains in fluid intelligence after training non-verbal reasoning in 4-year-old children: A controlled randomized study

Researcher(s): Sissela Bergman Nutley, Stina Söderqvist, Sara Bryde, Lisa B. Thorell, Keith Humphreys, Torkel Klingberg

Program: Cogmed RM

Published: Developmental Science, April 2011

In a double-blind, randomized, controlled study, Bergman-Nutley et al. investigated whether fluid intelligence could be improved by computerized non-verbal reasoning (NVR) training or working memory training. Preschool children were assigned to either: a) visuo-spatial working memory training, b) non-verbal reasoning training, c) combination working memory-NVR training or d) non-adaptive (placebo) combination training. Although only NVR training led to gains in fluid intelligence, working memory training still led to increased working memory capacity in preschoolers.