Eight for-profit colleges failed in 2008-9 to meet federal requirements for student aid eligibility that at least 10 percent of their revenue come from sources other than federal student aid, according to data released by the U.S. Education Department on Wednesday. No colleges failed the test the prior year. The data also show increasing numbers of for-profit colleges that, although in compliance with the law, are extremely dependent on federal student aid. From 2007-8 to 2008-9, the number of for profit colleges with 85 to 90 percent of revenue coming from federal student aid increased to 257, from 209. Further, the number with 80 to 85 percent of revenue coming from federal student aid increased to 285 from 248.