Question

Who was one of the first psychologists to work on intelligence?

• A. Alfred Binet
• B. David Weschler
• C. Francis Galton
• D. William Stern

Hint:

Binet and Simon built the first practical intelligence test.

Answer 1

The Correct Option is A

Step 1: Understand the question:
We need the name of an early psychologist who worked on intelligence. Several people did early work, so we must pick the one the textbook names as one of the first.
The expected answer comes from the NCERT unit on human intelligence.

Step 2: Recall the history:
Alfred Binet, a French psychologist, worked with Theodore Simon in the early 1900s. They built the first practical intelligence test to find school children who needed extra help. The NCERT text names Binet as one of the first psychologists to work on intelligence.

Step 3: Check option 1 (Alfred Binet):
Binet started the modern study of intelligence testing and introduced the idea of mental age. This fits the question well. So option 1 is correct.

Step 4: Check option 2 (David Weschler):
David Wechsler came later. He built the Wechsler scales, such as the WAIS and WISC, in the 1930s and after. He is a major name but he was not among the first. So option 2 is wrong.

Step 5: Check option 3 (Francis Galton):
Galton studied individual differences and heredity of ability, but he is known for work on eugenics and sensory tests, not for the first intelligence test the textbook credits. In this question the expected answer is Binet. So option 3 is wrong.

Step 6: Check option 4 (William Stern):
William Stern was a German psychologist who introduced the term intelligence quotient (IQ), the ratio of mental age to chronological age. He built on Binet's idea, so he came after Binet. So option 4 is wrong.

Final Answer:
The psychologist named as one of the first to work on intelligence is Alfred Binet. \[ \boxed{\text{Option 1: Alfred Binet}} \]