Although students who take online courses in community colleges tend to be better prepared and more motivated than their classmates, a study by Di Xu and Shanna Smith Jaggars of Columbia University shows that the online format has a significant negative impact on students' persistence in sticking with courses and on their course grades. For the typical student, taking a course online rather than in person would decrease his or her likelihood of course persistence by 7 percentage points, and if the student continued to the end of the course, would lower his or her final grade by more than 0.3 points on a 4-point scale. Before expanding online courses, colleges need to improve students' time-management and independent-learning skills, the researchers say.
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