Target Exam

CUET

Subject

Psychology

Chapter

Variations in Psychological Attributes

Question:

Arrange the following from the highest to lowest level of correlation in terms of IQ:

(A) The correlation between siblings reared together
(B) The correlation between identical twins reared together
(C) The correlation between siblings reared apart
(D) The correlation between identical twins reared in different environments
(E) The correlation of fraternal twins reared together

Choose the correct answer from the options given below:

Options:

(E), (D), (C), (A), (B)

(C), (A), (E), (D), (B)

(B), (E), (D), (A), (C)

(B), (D), (E), (A), (C)

Correct Answer:

(B), (D), (E), (A), (C)

Explanation:

The correct answer is Option (4) → (B), (D), (E), (A), (C)

(B) The correlation between identical twins reared together
(D) The correlation between identical twins reared in different environments
(E) The correlation of fraternal twins reared together
(A) The correlation between siblings reared together
(C) The correlation between siblings reared apart

"The evidence for hereditary influences on intelligence comes mainly from studies on twins and adopted children.

The intelligence of identical twins reared together correlate almost 0.90.

Twins separated early in childhood also show considerable similarity in their intellectual, personality and behavioural characteristics. The intelligence of identical twins reared in different environments correlate 0.72, those of fraternal twins reared together correlate almost 0.60, and those of brothers and sisters reared together correlate about 0.50, while siblings reared apart correlate about 0.25.".