A worldwide survey of intelligence test scores showed that there were significant gains in average IQ scores in 14 nationsin just one generation. These results provide support for environmental influences on IQ scores because the amount of time involved is far too short for genetically influenced changes to have occurred.

Question

Quizplus · Accepted Answer

The statement correctly identifies that the short period of time in which IQ scores increased supports the idea of environmental influences on IQ scores, rather than genetic changes, which would take much longer to manifest. Therefore, the statement is true.

A Worldwide Survey of Intelligence Test Scores Showed That There