IQ is a numerical representation of intelligence derived from dividing mental age by chronological age and multiplying by 100.

• A. A measure of creativity.
• B. A fixed trait that cannot change with age.
• C. A numerical representation of intelligence derived from dividing mental age by chronological age and multiplying by 100.
• D. A simple average of test results.

Answer: (C)

IQ is a numerical measure of intelligence calculated by dividing mental age by chronological age and multiplying by 100. This method creates a score that ties performance to age-normed groups, with an average around 100. That precise formulation is why the statement matches the concept: it describes how the score is obtained and what it represents.

Creativity isn’t what IQ primarily measures; IQ tests focus on reasoning, problem-solving, memory, and knowledge across verbal and nonverbal domains, not creative output.

The idea that IQ is a fixed trait that cannot change with age isn’t accurate, since performance on these tests can be influenced by experience, education, and development, even though there is a substantial genetic component.

An IQ score isn’t simply a raw average of test results; it’s standardized and scaled against age norms to produce a consistent, interpretable metric.