Earn College Credit with REA's Test Prep for CLEP(R) Principles of Macroeconomics Everything you need to pass the exam and get the college credit you deserve. CLEP(R) is the most popular credit-by-examination program in the country, accepted by more than 2,900 colleges and universities. For over 15 years, REA has helped students pass the CLEP(R) exam and earn college credit while reducing their tuition costs. Our CLEP(R)...