Quote of the Day

By looking at 13,000 twins identical and fraternal twins aged 16, the study found that 62 percent of the variability of test scores could be explained by genetics. The authors found that achievement was highly correlated intelligence, but almost as important were other characteristics such as self-belief, personality, well-being, perception of the school environment, and behavior problems. However, all of these characteristics were to some extent influenced by genetics.

- 23&Me Blog