A paid (professional) career test such as The Bridge Career was developed with extensive scientific research. As a result, the outcomes are valid and reliable.
A free test is a simple, short questionnaire that gives an overall picture of a career preference. Because it was not developed with test-theoretic (scientific) techniques, it is not actually a test (it does not predict anything).
Since a professional career test is much more comprehensive than a free test, the report is also much more specific. It states exactly what the candidate's career preferences and study options are. In addition, TestGroup's professional tests use algorithms, therefore a candidate cannot fill out the test in a socially desirable way.
The general report of such a free test states exactly what the candidate filled out, not what a candidate's real preferences are. Because free tests are not scientifically developed, the results of such a test are not valid or reliable. These short free tests can be steered in a certain direction by the candidate in a socially desirable way: they will show exactly what the candidate wants the results to show. This is of little use, because it means you don't know where your career opportunities are. This is also of little use to you as a company or organization, because you will not know where the real career steps of your employee can be found. Using free tests may seem advantageous, but because you won't find out what the best career steps are, using a free test can have expensive consequences.