IQ Test Calculator

This is an informal quiz for entertainment and self-exploration. Actual IQ tests (WAIS, Stanford-Binet) require administration by trained psychologists. Our quiz tests pattern recognition and logic but is not a clinical assessment and should not be used for formal evaluation.

IQ scores follow a bell curve: 100 is average, 68% score between 85-115, 95% between 70-130. Scores above 130 are \"gifted\" (top 2%), above 145 are \"highly gifted.\" Remember: IQ measures specific cognitive abilities, not overall intelligence or potential.

Pattern recognition (what comes next in a sequence), spatial reasoning (mental rotation, visualization), logical deduction, numerical reasoning, and verbal analogies. These are common in standardized IQ tests but our questions are for practice only.

IQ scores can improve with practice on similar tests (test-taking skills). Whether underlying intelligence increases is debated. What definitely improves: specific cognitive skills, problem-solving strategies, and knowledge. Focus on learning rather than scores.

Variation is normal due to: test difficulty differences, fatigue, stress, familiarity with question types, and random variation in testing. Even clinical tests have a margin of error of about 5 points. Take any single score as an approximation.