I used one for the Soviet Union DSST and I agree. They are not worth the money and they DID NOT reflect the questions asked on the exam.

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B.S. Liberal Studies - Excelsior College
Focus in Psychology and History
Done, but not officially conferred until March :-(

In Progress:
Master of Arts - Liberal Studies Excelsior College

Next up:
Harvard Extension School
Officer Candidate School (late '09)

Total Non-duplicate Sem Hrs: 155