Which of the following illustrates that Sergio has an IQ-achievement discrepancy that may be used to indicate that he has a learning disability?       Sergio's scores on an IQ test are higher than his scores on a standardized achievement test.     Sergio's scores on a standardized achievement test are higher than his scores on an IQ test.     Sergio's scores on two different IQ tests are significantly different.     Sergio's scores on an IQ test are average but he is performing poorly in class.

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