Question

State how intelligence is measured.

Answer 1

Intelligence is measured using standardized tests designed to assess a person’s mental abilities compared to others of the same age. These tests aim to evaluate different aspects of intelligence like reasoning, problem-solving, memory, and understanding.

A. Intelligence Quotient (IQ) Tests: The most common way to measure intelligence is through IQ tests. IQ stands for Intelligence Quotient, which gives a score that compares a person’s mental age to their actual age.

IQ = `("Mental age"/"Chronological age")xx100`

If a 10-year-old child has the mental ability of a 12-year-old, their IQ would be: `12/10xx100` = 120

B. Common Intelligence Tests:

1. Stanford-Binet Intelligence Test: Measures five areas – fluid reasoning, knowledge, quantitative reasoning, visual-spatial processing, and working memory.
2. Wechsler Intelligence Scale: Different versions for children (WISC) and adults (WAIS); measures verbal and performance abilities.
3. Raven’s Progressive Matrices: Non-verbal test focused on reasoning and problem-solving using visual patterns.

C. Types of Intelligence Measured:

1. Verbal ability: Understanding and using language
2. Logical reasoning: Solving puzzles and problems
3. Numerical ability: Working with numbers
4. Spatial ability: Understanding shapes and visualizing objects
5. Memory: Remembering and using information

D. Characteristics of a Good Intelligence Test:

1. Standardized: Same conditions for everyone
2. Reliable: Gives consistent results over time
3. Valid: Accurately measures what it claims to measure