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We Can Boost IQ: Revisiting Kvashchev's Experiment.
1School of Psychology, The University of Sydney, Sydney, NSW 2006, Australia.
Journal of Intelligence
|December 1, 2020
Summary
Intensive creative problem-solving training significantly boosts intelligence in late adolescents. This study found average IQ gains of 10-15 points, challenging previous conservative analyses.
Area of Science:
- Cognitive Psychology
- Educational Psychology
Background:
- Previous research suggested limited impact of creative problem-solving training on intelligence.
- Stankov's report on Kvashchev's experiment indicated a 7-point average IQ increase.
Purpose of the Study:
- To re-evaluate the effects of creative problem-solving training on intelligence.
- To address limitations in previous analytical approaches regarding IQ test variances.
Main Methods:
- Revisiting data from a 3-year experiment involving creative problem-solving training.
- Recalculating effect sizes using pooled standard deviations from initial and retest IQ scores.
- Analyzing fluid and crystallized intelligence changes.
Main Results:
- Recalculated analysis revealed an average IQ increase of 10 points for the trained group compared to controls.
- Specific measures of fluid and crystallized intelligence showed a 15-point higher increase in the experimental group.
- The study accounted for reduced IQ test variances post-training.
Conclusions:
- Prolonged, intensive creative problem-solving training yields significant positive effects on intelligence.
- These cognitive benefits are particularly notable in late adolescence (ages 18-19).
- The findings underscore the potential of targeted training to enhance cognitive abilities.
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