Describe the differences between achievement tests and aptitude tests.

Aptitude is the natural capability of a person to perform a certain task successfully without previous knowledge or studies. Therefore, aptitude tests are standardized exams designed to measure and evaluate your aptitude and define your strengths. Some examples are determine if you are able to deal with public, or if you have the abilities to become a pilot; in education they evaluate your aptitudes to determine if you can cope with a certain course.

Achievement tests are also called content test and they are made to review knowledge you have already learned.

Aptitude tests don't take into consideration previous formation, while achievement tests assess previous knowledge. You can prepare and study for the achievement test, while for aptitude tests there isn't any material to study.