Transcript The IQ Test
The Intelligence Quotient Alex Culling Intelligence Quotient Intelligence quotient (IQ) - A quantitative representation of cognitive ability which results from testing a sample of cognitive skills. The formula is intellectual age divided by chronological age . History In 1905, Alfred Binet and his partner Theodore Simon developed the “Intelligence Quotient Test”. This test was designed to predict academic performance within the French Educational System. History Skill and knowledge assessment was not equally weighted. This problem was corrected in 1916 by Lewis Terman from Stanford University, creating the modern revised Stanford-Binet test. Sample Items from 1911 BinetSimon Test AGE 3 15 TASK Shows nose, eyes and mouth. Repeats two digits. Describes objects in a picture. Gives family name. Gives three rhymes. Repeats a sentence of 26 syllables. Solves a problem from several facts Source: Alfred Binet and Théodore Simon, A Method of Measuring the Development of the Intelligence of Young Children, 1911 (translated by Clara H. Town, 1913). Scoreing A score of 100 represents the average, with a standard deviation of 15, Normal Intelligence is scored between 85 and 115. Interpretation: Mental Retardation IQ Definitions Borderline mental retardation: 70 -85 Mild mental retardation: 6569 Moderate mental retardation: 40-54 Severe mental retardation: 30-39 Profound mental retardation: <30 What does it mean? The degree of “mental retardation” predicts the amount of assistance and additional instruction required to achieve expected academic achievement. These students exhibit some form of learning disability. Profound retardation is usually the result of severe head trauma. References Binet pioneers intelligence testing Alfred Binet – Wikipedia Human Intelligence Alfred Binet THE END