Which statement accurately describes the differences between crystallised intelligence and fluid intelligence?

• A. Fluid intelligence pertains to acquired knowledge
• B. Crystallised intelligence is typically fixed and unchangeable
• C. Crystallised intelligence differs from fluid intelligence as it relates to acquired knowledge
• D. Fluid intelligence is more relevant for practical problem solving

Answer: (C)

The statement that accurately describes the differences between crystallised intelligence and fluid intelligence is that crystallised intelligence differs from fluid intelligence as it relates to acquired knowledge.

Crystallised intelligence refers to the accumulation of knowledge, facts, skills, and experience that a person acquires over time. It is based on education and cultural exposure, and it tends to remain stable or even improve with age as individuals continue to learn and accumulate experiences. This type of intelligence encompasses vocabulary, general knowledge, and the ability to use learned information.

In contrast, fluid intelligence involves the capacity to think logically and solve new problems without relying on previously learned knowledge. It focuses on reasoning and the ability to identify patterns and relationships in unfamiliar situations. Fluid intelligence tends to peak in early adulthood and may decline over time.

Understanding this distinction helps to clarify why crystallised intelligence is associated with knowledge that has been acquired and retained, while fluid intelligence is related to the ability to apply reasoning skills to novel challenges.