John C. Raven: The Psychologist Who Reshaped IQ Testing

John Carlyle Raven (1902–1970) wasn’t just another psychologist—he was a game-changer in the world of intelligence testing. His name might not be as instantly recognizable as Freud or Pavlov, but if you’ve ever taken a nonverbal IQ test, especially one that involves patterns and logic, you’ve seen his influence firsthand. Raven’s Progressive Matrices (RPM)…

RPM: The Intelligence Test Everyone’s Talking About

When people think of intelligence tests, they usually imagine a bunch of math problems, tricky vocabulary words, or random trivia questions. But what if there was a way to measure intelligence without relying on language, background knowledge, or culture? That’s exactly what Raven’s Progressive Matrices (RPM) does. RPM isn’t just some test psychologists keep…

Why the g Factor Matters Across Cultures

Ever heard of the g factor? It’s short for “general intelligence,” and psychologists have been debating, testing, and analyzing it for decades. Basically, it’s the idea that a single underlying mental ability influences how well we perform on various cognitive tasks. So, whether you’re solving math problems, interpreting abstract patterns, or learning a new…