Peterson's Score vs CLEP test on Introductory Sociology

[jxc5631]

I started studying I think on Friday, but studied quite a bit on Saturday, yesterday, and this morning.

I took the first Peterson's prep test in Introductory Sociology and got a 65%. (Edit: I thought this was a passing grade, but I'm not sure? I know that you need to score at least 50 in the real test, but I guess the percentages in the Peterson's prep test is different?) How would that translate when I take the real CLEP test? Is the real test harder or easier than the Peterson's prep test?

I will take the Peterson's prep test 2 more times as well as the REA prep test that I purchased. The goal is to get at least a 70%. I may reschedule to take the test sooner (this Wednesday) because I need the score before a certain date so I can graduate this semester (deadline January 8).