I'll post the scores I had if you want to compare them. In general, the REA practice tests are a bit easier, and the Peterson's are a bit harder than the real test.
REA 1: 52 scaled
REA 2: 60 scaled
REA 3: 58 scaled
Official Clep: 72 percent
BA History from TESC, Spring 2014
An&InLit, AmLit, USHisI, USHisII EnCompw/Essay, WCivI, WCivII, ALEKS PreCalc, AmGov, IntroComp, Bio, Intro Psych, Human Growth, Ed Psych, EnglishLit, Art of WW, SoSci&His, Vietnam War, World Religions, Europe 1945, Middle East, Soviet Union, Humanities, FEMAs, TESC courses - Liberal Arts Capstone, War and American Society