Allowing respondents to retake a cognitive ability test has shown to increase their test scores. Several theoretical models have been proposed to explain this effect, which make distinct assumptions regarding the measurement invariance of psychometric tests across test administration sessions with regard to narrower cognitive abilities and general…

A review of the basic information on intelligence testing as a schooling practice is presented, including a discussion of what intelligence is and three psychological approaches to studying intelligence (psychometric, behavioristic, and developmental). All intelligence tests derived from the psychometric approach are standardized and…