What is IQ?
IQ, or Intelligence Quotient, is a way to measure how smart someone is compared to others. It's like a score that reflects how well you can solve problems, remember things, and understand information.
IQ tests are designed to figure out these abilities. The average IQ score is 100. Scores above 100 mean you're smarter than average, and scores below 100 mean you're less smart than average. Most people fall somewhere between 85 and 115.
The concept of IQ, or Intelligence Quotient, has a history dating back to the early 20th century. Here's a brief overview:
Early Development: The idea of measuring intelligence dates back to the work of psychologists like Alfred Binet and Theodore Simon in France during the early 1900s. They developed the first intelligence test, known as the Binet-Simon Scale, to identify children who might need extra help in school.
Stanford-Binet Test: In 1916, Lewis Terman, a psychologist at Stanford University, adapted Binet's test for use in the United States, resulting in the Stanford-Binet Intelligence Scale. This test became one of the most widely used IQ tests and was revised several times over the years.
Wechsler Scales: In the 1930s, David Wechsler developed the Wechsler-Bellevue Intelligence Scale as an alternative to the Stanford-Binet test. Wechsler's tests became popular because they provided separate scores for different aspects of intelligence, such as verbal and nonverbal abilities.
Standardization and Norms: Over time, IQ tests were standardized to ensure consistent administration and scoring. Norms were established to compare an individual's score to the scores of a representative sample of the population.
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