The first successful effort to measure intelligence was made by a. Binet and Simon. b. Spearman. c. Wechsler. d. Terman. According to Terman’s formula, what is the IQ of a child with a mental age of...

The first successful effort to measure intelligence was made by

a. Binet and Simon. b. Spearman.

c. Wechsler. d. Terman.

According to Terman’s formula, what is the IQ of a child with a mental age

of 12 and a chronological age of 8?

a. 75 b. 150

c. 125 d. 100