Effective January 1, 2014, the Missouri Department of Elementary & Secondary Education switched to the new high school equivalency test called HiSET, developed by ETS (Educational Testing Service.) The state formerly offered the GED (General Educational Development) test from GED Testing Service. Be sure to visit the HiSET website, too.
The navigation bar on the left side of the screen has links to everything you need, including answers to FAQs and, under the About HSE tab, you'll find pricing info.
Good luck! Come back and share your experience with others: Which Part of the GED Test Is Easiest/Hardest?