Perspectives vary, however. According to the School Library Journal (2005), students are receiving higher grades with less outside preparation, while the Washington Post (2006) reports that the increase in the amount of student homework has increased arguments against it. Alfie Kohn, a critic of homework, recently wrote, "There was no consistent linear or curvilinear relation between the amount of time spent on homework and the child's level of academic achievement" (2006, 15)