The CogAT is a group administered cognitive abilities test that assesses verbal, quantitative, and non-verbal abilities. The CogAT is NOT an IQ test; it focuses specifically on reasoning skills that are related to school success.
The Weschler Intelligence Scale for Children – Fifth Edition, or WISC-V, is an individually administered intelligence test, or IQ test, designed for children between the ages of 6 and 16. In total, the test only takes about an hour to administer; however, children may take the WISC-V as a part of a more comprehensive neuro-psychological evaluation which may take several hours.
The Stanford-Binet is an individually administered adaptive intelligence test. While the WISC-V is now the most commonly administered IQ test for children, the Stanford-Binet has been around the longest. It measures five weighted factors in both verbal and nonverbal abilities. The five factors are: knowledge, quantitative reasoning, visual-spatial processing, working memory, and fluid reasoning.