The GED test measure the educational achievement of adults who are not high school graduates and compares their competency with that of high school graduates. For sample questions, you may access this sites:
If you started taking the GED tests prior to January 1, 2014, but did not pass, your scores cannot be carried forward to complete your GED. You will need to take the entire test on the 2014 version administered at all GED test centers.
The 2014 GED® Test Specifications
Seven different item types: