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.