When Stanford Binet developed the first IQ test in 1905 in France, it was not done with the intention of assessing IQ. The purpose was to single out pupils at schools who required additional help with their studies at school.
Over the years, the Simon-Binet test was tweaked further and refined to assess an individual's cognitive abilities, intelligence and performance, whereby future success was linked with these factors. When interpreted correctly, IQ tests are a valid measure of an individual's intelligence. What do these tests measure? IQ tests generally consist of a series of various questions designed to measure cognitive abilities. These criteria for assessment are based on psychological evidence and include the following aspects.
Many perceive IQ tests to be a measure of an individual’s memory and knowledge acquired through past experience. However, in reality, these IQ tests are intended to measure the capability to learn and retain things and assess the individual’s capability to solve problems through cognitive thinking that is not associated with past knowledge or skills acquired. The IQ test format Currently, various formats of IQ tests are in use around the world. These modern IQ tests have come a long way since the inception of the first test in the early 20th century. However, the basic methodology remains the same as the tests are designed to test an individual’s intelligence rather than what they have learned in the past. While there are several variations of the IQ tests, the most common one in use is the WAIS (Wechsler Adult Intelligence Scale). The test was conceptualized in 1955 and was a rendition of the earlier versions of IQ tests which assessed the various abilities, including numerical reasoning, logic, verbal comprehension and spatial intelligence. The latest version of this test is the WAIS-IV. It consists of ten sub-tests and five supplemental tests. The sub-tests are designed to assess candidates on four main scales: short-term memory, processing speed, perceptual reasoning, and intelligence. The individual is assessed in a group of individuals or their peers to derive a more accurate assessment. The median score is 100, while two-thirds of the candidates have scores between 115 and 85. For accurate iq test, click here.
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