Answer: Two years ago Sean took an intelligence test and earned a score of 99 and recently earned a score of 102. Yet at school Sean earns straight-A grades. The apparent discrepancy between Sean's IQ score and school performance is because Intelligence tests and school grades measure such different abilities that the discrepancy does not require any explanation.
Explanation:
Grading in the school process is a method used to assess and categorize student achievement .
The classification of the IQ is the practice of classifying the score obtained in IQ tests with categorical labels, however it is proven that it is not the only thing that determines the success of a person. The intellectual quotient is an estimator of the general intelligence resulting from some of the standardized tests designed for this purpose. It is considered that the human brain is complex enough to not be able to measure intelligence with a single factor. The standard IQ test measures how smart a person is, traditionally, based on math or language. All other areas in which a person can excel or have natural capacity are not taken into consideration.