J. Intell., Volume 8, Issue 4 (December 2020) – 9 articles
Cover Story (view full-size image): Earlier interpretations of the behavior genetic studies led to the conclusion that cognitive training has limited effects and cannot produce lasting effects on intelligence. Today, the opinions are divided. Our re-analysis of the previously published data support a positive view. The experimental group was given exercises in creative problem solving at least once a week for 3 years while the control group attended normal school classes. A battery of IQ tests was given at the start (age 15) and the end of High School (age 19). The progress of the experimental group was 10 to 15 IQ points higher than that of the control group. Therefore, intensive and prolonged training can lead to a substantial increase in IQ. View this paper.
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