题目选项分析

The principal of School X has proposed a plan that would add an hour-long study period to the end of the school day. She claims that the extension would improve the school`s average score on the math section of the state assessment by allowing students more time to complete math homework that they wouldn`t otherwise have time to complete.

Which of the following statements, if true, would most weaken the argument presented above?

【选项】Administrators from neighboring School Y recently implemented a school day extension and have seen no significant improvement in student test scores on the state assessment.