If an IQ Test Has High Predictive Validity,which of the Following

Multiple Choice

If an IQ test has high predictive validity,which of the following is true?

A) Students who take the test repeatedly tend to improve their scores.
B) Students who do well on the test also succeed in school.
C) All groups of people have the same mean and standard deviation.
D) The test was standardized on a large, cross-cultural sample of people.