To assess whether intelligence is a single trait or a collection of several distinct abilities,psychologists have made extensive use of

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To assess if intelligence is a single trait or multiple abilities, psychologists use factor analysis, which can identify underlying dimensions or factors that contribute to intelligence. This analysis allows them to determine whether intelligence is a unitary construct or whether there are separate abilities that contribute to overall intelligence. The other options, such as the normal curve, Flynn effect, and standardization, do not specifically address this question.

To Assess Whether Intelligence Is a Single Trait or a Collection