The main improvement in the 1908 Binet-Simon scale was the introduction of
A)the concept of mental age.
B)a control group.
C)a performance scale.
D)the IQ concept.

Question

Quizplus · Accepted Answer

The 1908 Binet-Simon scale introduced the concept of mental age, which refers to the level of mental ability typical of a child of a certain chronological age, allowing for a more nuanced assessment of intellectual development.

The Main Improvement in the 1908 Binet-Simon Scale Was the Introduction