An educational infographic detailing the psychometric approach to intelligence, IQ scores, Stanford-Binet, and Wechsler scales.

Describe the psychometric approach to intelligence (i.e intelligence quotient or IQ) The psychometric approach to intelligence involves quantifying intelligence through the use of standardised tests. Standardised tests give an intelligence quotient iq score. It treats in intelligence as a measurable trait or set of traits Describe common methods by which intelligence is measured with reference to IQ tests and scales. The most common methods by which intelligence is measured include the stanford binet scale and Wechsler intelligence scales, for adults (WAIS IV) and children (WISC IV) both tests use verbal and non verbal tests to measure different cognitive abilities as well as an individual's overall intelligence quotient. Stanford's binet intelligence scale – test construction was based on the idea of age differentiation increasing age = increasing cognitive ability. The binet scale is one of the oldest and most widely used intelligence tests. The binet scale also assesses 5 cognitive abilities, fluid reasoning, knowledge, quantitative reasoning, visual spatial processing and working memory. Provides an overall score as well as scores for each cognitive ability. Wechsler adult intelligence scale (wais IV) Designed for adults aged 16-90 years old and it assesses major components of intelligence, verbal comprehension, perceptual reasoning, working memory and processing speed. It provides full scale IQ scores and individual index scores. It is widely used in clinical and Mehr sehen