Posts Tagged ‘twins’

While the debate over intel­li­gence rages on many fronts, the bat­tle over the impor­tance of hered­i­ty rages loud­est. It’s easy to see why. If the camp that argues intel­li­gence is 75 to 85 per­cent genet­i­cal­ly deter­mined is cor­rect, then we’re faced with some tough ques­tions about the role of edu­ca­tion. If intel­li­gence is improved very…