Stephen Downes provides a great review of Computers and Student Learning (reported by BBC). The initial report essentially stated ""Students who use computers a lot at school have worse maths and reading performance."
After exploring the process and presumptions of the research, Stephen concludes: "So what can we conclude from the study?
Probably this: that a computer, all by itself, considered independently of any parental or teacher support, considered without reference to the software running on it, considered without reference to student attitudes and interests, does not positively impact an education." He also succeeds in creating the only known educational technology reference to include both Wayne Gretzky and Paris Hilton!