HiSET tests give adults a chance to earn their jurisdiction's or State's High School Equivalency (HSE) diploma, which certifies they have attained the educational level of a high school graduate. The HiSET test is a series of five tests covering writing, science, math, literature and the arts, and social studies. These tests require the test taker to apply reading, math, language, and critical thinking skills. Tests are taken one at a time, and can be taken in any order, as long as writing and math are not last. Passing the HiSET test series allows student to earn their High School Equivalency Diploma (HSED).