BISMARCK, N.D. (AP) _ North Dakotans trying to get the equivalent of a high school diploma have a few weeks before the testing changes to a computer-based model. The last day students can take current General Educational Development, or GED, tests is December 13th. If they don't pass all five tests in science, social studies, math, English and writing, they'll need to start the testing process over again after January 2nd. The new tests will only include four subject areas, with English and writing combined into one test. The state says the change aligns with the common core education standards adopted by North Dakota and most other states.