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Intelligence
1. Intelligence has been an important and controversial topic throughout psychology's history. In addition to questions of exactly how to define intelligence, the debate continues today about whether it can be accurately measured. Today's intelligence tests are based largely on the original test devised in the early 1900's by French psychologist Alfred Binet. In order to identify students in need of extra assistance in school, the French government asked Binet to devise a test that could be used to discover which students most needed academic help.
2. Faced with this task, Binet and his colleague Theodore Simon began developing a number of questions that focused on things that had not been taught in school such as attention, memory and problem-solving skills. Using these questions, Binet determined which ones served as the best predictors of school success. He quickly realized that some children were able to answer more advanced questions that older children were generally able to answer, while other children of the same age were only able to answer questions that younger children could typically answer. Based on this observation, Binet suggested the concept of a mental age, or a measure of intelligence based on the average abilities of children of a certain age group.
3. This test, first published in 1916, was called the Stanford-Binet Intelligence Scale and soon became the standard intelligence test used in the U.S. The Stanford-Binet intelligence test used a single number, known as the intelligence quotient (or IQ), to represent an individual's score on the test. The term «intelligence quotient» or IQ, was first coined in the early twentieth century by a German psychologist named William Stern. Since that time, intelligence testing has emerged as a widely used tool that has led to the development of many other tests of skill and aptitude.
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What did the first test of Binet and Simon measure?