Attending class every day in college could decrease the chances of anxiety because the student would learn everything they need to know. Students who lack academic knowledge for a specific topic could "have difficulty writing [their] next case study analysis or passing [their] next exam" which would lower their grade and raise their level of anxiety. Studies show that "class attendance is the number one predictor of grades in a college course, outranking time spent studying, studying skills, high school grades or standardized tests" (College Students Reveal...) and once a student regularly attends their classes in college, they would have increased the chances of receiving a good grade on a test. Anxiety could occur because the stress a student puts on themselves once they are not receiving good grades in a class. Also, when “not talking to anyone, avoiding class, and finding ways of leaving the room when you experience anxiety can lead to social stigmatization and not being able to keep up with the workload, which can, in turn, lead to additional stress, low grades, and even failed classes” (Social Anxiety). In the graph, it’s shown that the level of anxiety in college students have increased to higher levels. The real cause of high levels in anxiety occurred from 2009-2010. Anxiety in college students have a higher percentage than those students who suffer from depression or relationship problems.