| | Test Validation
Test
validation is a procedure that demonstrates
that a test is job-related and correlates to on-the-job performance. There are three main types of
validation:
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Content
Validation - is a procedure where the content of the job in question
is analyzed, matched and compared, (function by function) to the
abilities measured by the test. This shows that the test is related to
the job.
-
Concurrent
Validation - is a procedure which tests individuals currently in the
position, and then statistically compares their test results with their
current performance.
-
Predictive
Validation - is a procedure which tests individuals when they are
hired, and then statistically compares the test results, after a certain
time, to on-the-job performance. A successful comparison or correlation
suggests that the test is predictive of on-the-job success. For a good
predictive study, a large application pool and considerable time
and effort are required. A suggested scenario would be to test all
applicants as they are hired -- but not use the test results for
selection. At the end of a period, say one year, a comparison is made
between the test results and on-the-job performance criteria.
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