Employers may use Psychometric tests to assess candidates' competence in the skills and qualities that are needed in the job. Sometimes employers use tests at the earlier stages of the process to decide who they are going to interview and sometimes tests are administered at the final stages as part of an Assessment Centre.
Personality questionnaires are not in fact tests as such but questionnaires designed to give the employer an inventory or profile of your traits and the way in which you react in given situations. This could include how you relate to others, your values and motivations or your style of working. Employers use them to assess whether you have the right type of personality for the job and company. They are usually un-timed and there are no right or wrong answers. There is no pass or fail. You can't really prepare for them, just answer the questions honestly. They usually check you are being consistent by asking similar questions in different ways so don't get caught out or try to guess what they are looking for. At the end of the day, it's not in your interests to end up in a job that doesn't suit you.
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