A recent study indicates that students who study late at night score higher on mathematics tests than those who study in the morning. Based on these findings, the principal of a local high school suggested that all students should be encouraged to study late at night to improve academic performance.
This recommendation assumes that the time of day when students study is the primary factor affecting their test scores. However, other factors could also influence students' performance, such as the amount of study time or the quality of their study materials.