Some researchers are looking for other predictors to help account for a greater percentage of criterion variance than what is accounted for by general cognitive ability. Their goal is to demonstrate:

Question

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The researchers are looking for additional predictors to account for more variance in the criterion, which demonstrates incremental validity. Content validity refers to how well a test measures a specific content or construct, construct validity refers to how well a test measures the theoretical construct it is intended to measure, and reliability refers to the consistency and stability of test scores.

Some Researchers Are Looking for Other Predictors to Help Account