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25.8.11

5.2 Tests as a selection tool


There are various types of tests and ways in which they might be used as part of the selection process (see Box 5). Before using any kind of test you should ensure that you know why you are using it and how it relates to the job specification.

Box 5: Selection tests

Aptitude tests
· Tests of physical ability: used for the selection of manual workers. For example, a test of the ability to perform lifting operations might be used.
· Mental ability tests: tests of literacy, numeracy and intelligence.
· Analogous tests: tests which simulate some of the actual tasks in the job, for example a typing or word-processing test for secretaries. Group problem-solving exercises and presentations may be suitable for managerial jobs.
Personality tests
The use of these in selection comes from the assumption that certain jobs require certain personalities and that tests can identify them. The most common form of personality test is questionnaires designed to rate respondents on various personality dimensions. The individual is rated for being persuasive, socially confident, competitive, decisive, introspective, artistic, conceptual, traditional, independent, extravert, stable, optimistic, and so on. Most reputable personality tests need to be administered and scored by trained and licensed users. Organisations selling personality tests usually recommend that they are not the only method used for selection.
Assessment centre
This is a process, rather than a place, that uses a number of selection techniques in combination. A typical assessment centre would assemble 12 applicants after screening and subject them to tests such as intelligence tests, presentations, group work and interviews.
Tests can be very useful in the selection process as they actually replicate certain parts of the job, whereas a selection interview can only indicate whether the person has that ability. However, most tests are time-consuming to administer and can be used indiscriminately. It would be very unusual to use a test as the sole means of selecting and, particularly with personality tests, it should not be the major evidence on which the decision to appoint or not is made. Very often the results of personality tests are used in interviews as the basis for further investigation and questioning about an applicant's abilities.

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