What exactly is an IQ test? I know it supposedly measures intelligence, but what does that actually mean? Is it like a school exam with right and wrong answers, or something completely different? What are they actually testing when you take one?
IQ tests measure cognitive abilities like reasoning, problem-solving, pattern recognition, memory, and processing speed. They’re standardized so your score shows how you compare to the general population.
An IQ test is a standardized assessment designed to measure cognitive abilities across several domains: verbal comprehension, working memory, processing speed, and perceptual reasoning. Unlike school tests that measure what you’ve learned, IQ tests aim to measure your capacity to learn and solve novel problems. The score is norm-referenced, meaning 100 is average and scores follow a bell curve with standard deviations of 15 points. Tests like the WAIS or Stanford-Binet take 1-2 hours and include tasks like vocabulary, digit recall, matrix reasoning, and puzzles. The result gives you a single composite score plus subscores in different areas. IQ tests are among psychology’s most reliable measures, but they capture one specific type of intelligence, not creativity, wisdom, or practical skills.