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Since these tests reveal personality traits, there are no "right" answers to the questions. However, your manager should be able to tell you the basic concepts you can expect to encounter on the assessment. You can ask your manager:  "Is there anything I can do to prepare for this test?" "What kind of subject matter will I be tested on?" Search for Myers-Briggs tests on the Internet and try taking a few of them. Answer the questions honestly to get the most accurate results. Taking these practice tests can help you know what kinds of questions to expect.  Personality tests are used to determine how extroverted, rational, and emotional you are, among other qualities. Employers use them to evaluate personal qualities, like whether you are introverted or extroverted.  Practice tests can help you identify traits you can work on to become better suited for the job. For example, if the job requires a lot of interaction, you can work on being more outgoing. Think about the qualities the employer says they're looking for in the job ad when answering questions. If they're looking for highly ambitious people, don't provide answers that make you sound complacent. If they're looking for someone detail-oriented, make sure your answers are consistent and meticulous. Don't be modest when answering questions about yourself, but also make sure not to misrepresent yourself either. Job assessment tests often ask similar questions several times using slightly different wording. If you provide inconsistent answers on the test, this could seem like a red flag to the employer. They might assume that you're lying or that you behave erratically. For instance, if you call yourself extroverted in one answer but then say you prefer spending time alone in another answer, this will seem inconsistent. Job assessment tests often ask questions about whether or not you're honest, trusting, and optimistic. If you make yourself sound like a negative or untruthful person, employers will most likely lose interest in you. For instance, job assessment tests often ask if you think it's normal to steal things from work. You should answer “no” to this kind of question. Answering “yes” may make you sound cynical or like someone who frequently steals. People who don't work well on teams usually perform poorly at work and rarely advance in the organization. If you make yourself seem overly introverted or disagreeable, employers might think you'd be a poor fit for the company. When questions ask if you're outgoing, courteous, flexible, and so on, answer in the affirmative whenever possible. Employers want to know that you can handle stress and control your temper. Never choose answers that suggest you think it's normal to get angry with co-workers or managers. Choose answers that show that you don't get overwhelmed by deadlines or multi-tasking. This will let employers know that you'll be a calm and collected worker.
Ask your hiring manager to give you an idea of what to expect. Take practice personality tests online to prepare. Provide answers that show you are a good fit for the job. Answer questions consistently. Choose answers that show you're ethical and positive. Give answers that show you work well with others. Choose answers that show you're level headed.