Final answer:
The question is asking whether the length of the school day affects student achievement. While the longer school day may have contributed to the increase in student performance on statewide tests, it does not prove that a longer school day alone improves student achievement. Other factors such as student effort and teaching quality should also be considered.
Step-by-step explanation:
The subject of this question is Education and the grade level is High School. The question is asking whether the length of the school day affects student achievement.
To answer this question, we need to consider the information provided. While the high school increased the length of the school day from 6.5 to 7.5 hours, there are other factors to consider before making a conclusion based on this information alone. It is important to take into account other factors such as the students' effort, adherence to school rules, and the quality of teaching.
In conclusion, while the longer school day may have contributed to the increase in student performance on statewide tests, it does not prove that a longer school day alone improves student achievement. Other factors such as student effort and teaching quality should also be considered.