g-factor

The g-factor, or general intelligence factor, is a concept in psychology that represents a person's overall cognitive ability. It reflects the idea that various mental skills—such as reasoning, problem-solving, memory, and learning—are interconnected and often improve together. In essence, someone with a high g-factor tends to perform well across different types of mental tasks, suggesting a common underlying intelligence. The g-factor helps explain why individuals who excel in one area often do well in others, serving as a core measure of general intellectual capability.