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"'There have been no advances over the past decade that can be confidently attributed to broader access to computers,' said Stanford University professor of education Larry Cuban in 2001, summarizing the existing research on educational computing. 'The link between test-score improvements and computer availability and use is even more contested.' Part of the problem, Cuban pointed out, is that many computers simply go unused in the classroom. But more recent research, including a University of Munich study of 174,000 students in thirty-one countries, indicates that students who frequently use computers perform worse academically than those who use them rarely or not at all. "