Aptitude tests measure an individual’s potential to learn certain skills – clerical, mechanical, mathematical, etc. These tests indicate whether or not an individual has the ability to learn a given job quickly and efficiently.
In order to recruit efficient office staff, aptitude tests are necessary. Clerical tests, for example, may measure the incumbent’s ability to take notes, perceive things correctly and quickly locate things, ensure proper movement of files, etc.
Aptitude tests, unfortunately, do not measure on-the-job motivation. That is why the aptitude test is administered in combination with other tests, like intelligence and personality tests.