Final answer:
If the college board neglected to put any questions that had to do with neuroscience on the AP Psychology exam one year, the test would lack Content validity.
Step-by-step explanation:
The correct answer is A) Content validity. Content validity refers to the extent to which a test measures the specific content area it is intended to measure. In this case, if the AP Psychology exam neglects to include any questions about neuroscience, it would lack content validity because it would not adequately assess the knowledge and understanding of neuroscience.