Question:medium

In this question, a statement of Assertion (A) is followed by a statement of Reason (R). Read the statements and choose the appropriate option:
Assertion (A): The theory of primary mental abilities states that intelligence consists of primary abilities, each of which is relatively independent of the others.
Reason (R): This theory explains that intelligence consists of abilities operating at two levels, called Level I and Level II.

Show Hint

When working with theories of intelligence, know who proposed the theory and its main tenets.
Updated On: Jan 13, 2026
  • Both Assertion (A) and Reason (R) are true, and Reason (R) is the correct explanation of Assertion (A).
  • Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Assertion (A).
  • Assertion (A) is true, but Reason (R) is false.
  • Assertion (A) is false, but Reason (R) is true.
Show Solution

The Correct Option is C

Solution and Explanation

Assertion (A): The theory of primary mental abilities, developed by Louis Thurstone, posits that intelligence comprises multiple independent distinct abilities, refuting the concept of a singular general intelligence factor.
Reason (R): The assertion that the theory of intelligence is based on two levels, level I and level II, is incorrect. This model belongs to Arthur Jensen, not Louis Thurstone. Therefore, the reason is false.
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