Used in a variety of professional settings including educational and human resources contexts, aptitude and achievement tests can seem similar. Both are standardized assessments that measure performance on specific parameters, and both are frequently administered within group settings such as the workplace or school. The main difference between aptitude and achievement tests is that the latter assesses mastery of a specific lesson or course. For example, standardized achievement tests are issued to students in school to assess learning in specific subjects like reading or mathematics. The achievement test determines whether the student has mastered the material. Achievement tests also serve another purpose, which is to help educators see how an entire class of students has or has not mastered the material. The results of a group of achievement tests can demonstrate what areas of the lesson were challenging to the majority of students, which would help the teacher design better lesson plans or change the approach to the content. Likewise, because achievement tests are issued in a group setting, individual students are assessed according to normative standards instead of absolute standards. This way, differences in teaching style or instructional materials can be tracked from year to year and compared with the differential...

For example, organizations will invest a large amount of money on employee training and development programs. These programs need to be assessed for their value in helping employees master new skills to promote organizational goals. If the entire group scores poorly, then the problem may lie with the instructional design and changes could be made accordingly. As with achievement tests used in a school context, employee achievement tests can also help human resources managers determine which candidates or employees perform at the highest percentile based on a standard normal curve distribution. In school counseling settings as well, achievement tests may measure factual or declarative knowledge, as in a history exam, or may measure mastery of a specific skill set, such as performance in athletics, music, or dance (Ackerman & Lakin, 2018).
Aptitude tests do not measure performance on a specific unit, lesson, or training program. Instead, an aptitude test measures overall performance on general constructs—usually related to some type of cognitive construct of intelligence. An aptitude test is used more for placement, to understand where the individual is at now in terms…