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The focus of predictive validity lies in evaluating how well a test can forecast future outcomes or behaviors based on the results it generates. This type of validity assesses whether scores obtained from a specific test correlate with a relevant criterion measured at a later time. For example, a college entrance exam may be assessed for predictive validity by examining whether students who perform well on the exam also achieve higher grades in their subsequent college courses.

This ability to predict outcomes is crucial in various fields, including education, psychology, and employment, because it establishes a practical and functional link between testing and real-world applications. By using predictive validity, professionals can determine if a test is a useful tool for making informed decisions regarding future performance or behavior.