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IQ 130 = Genius? The truth about IQ tests

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René Wilbrandt
March 16, 2026

An IQ score can label someone a genius — or not. But how do IQ tests work, and do they really measure intelligence?

An IQ score can shape how people are seen in school, work, and research. But what does that number actually reveal about intelligence? IQ tests were originally developed by Alfred Binet to measure how well people recognize patterns, solve problems, and think logically. Typical test tasks include number series, visual puzzles, and pattern recognition challenges. These are meant to capture analytical and abstract thinking — but they don't measure knowledge, creativity, or emotional intelligence. Researchers also debate whether IQ tests reflect cultural assumptions, since many were developed using Western norms. Most scientists agree today: an IQ score can reveal certain cognitive abilities, but intelligence itself is far more complex than a single number.

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