Target Exam

CUET

Subject

Psychology

Chapter

Variations in Psychological Attributes

Question:

Identify the statements that are correct about the influence of hereditary on intelligence:

(A) The intelligence of identical twins reared together correlates almost 0.90.
(B) The intelligence of brothers and sisters reared together correlates about 0.65,
(C) The intelligence of identical twins reared in different environments correlates about 0.72.
(D) The intelligence of siblings reared apart correlates about 0.25.

Choose the correct answer from the options given below:

Options:

(A), (C) and (D) only

(B), (C) and (D) only

(A), (B), (C) and (D)

(B) and (C) only

Correct Answer:

(A), (C) and (D) only

Explanation:

The correct answer is Option (1) → (A), (C) and (D) only

(A) The intelligence of identical twins reared together correlates almost 0.90. (Correct)
(B) The intelligence of brothers and sisters reared together correlates about 0.65. (Incorrect). The intelligence of brothers and sisters reared together correlates about 0.50.
(C) The intelligence of identical twins reared in different environments correlates about 0.72. (Correct)
(D) The intelligence of siblings reared apart correlates about 0.25. (Correct)