What is the purpose of standardized norms in intelligence testing?

The purpose of standardized norms in intelligence testing is to provide a framework for interpreting an individual's test score by comparing it to a representative sample of the population. Standardized norms are derived from a large and diverse group of test-takers, establishing what constitutes average, above-average, and below-average performance. This comparison allows psychologists and educators to understand how a specific individual's score relates to a broader group, helping make sense of the results in context.

By utilizing these norms, psychologists can assess whether an individual's test score is indicative of typical cognitive abilities or suggests certain areas of strength or weakness. This practice is crucial for ensuring that test scores carry meaningful insights rather than being interpreted in isolation, which enhances their utility in educational placements, assessments for learning disabilities, and other important decisions.