Neuropsychologists explore the relationship between brain functioning and cognitive abilities, including intelligence. IQ tests can provide insights into specific cognitive strengths and weaknesses associated with neurological conditions or brain injuries.
The field of developmental psychology examines how intelligence and cognitive abilities change and develop over the lifespan. IQ tests are often used to track cognitive growth and identify developmental delays or giftedness in children.
This field focuses on the measurement of psychological attributes, including intelligence. Psychometricians develop and analyze the statistical properties of IQ tests, such as reliability and validity, to ensure their accuracy and usefulness.