A career assessment almost always involves a desire or need (in the case of outplacement) to change jobs. The central question is which change is most obvious, given your motives, personality and competences. A career assessment therefore indicates what kind of professions and organisations suit you. A career assessment often involves more than just the assessment day itself. Usually, there is an interview that takes place a few weeks prior to the assessment.
In a career assessment, the assessment day itself does not actually differ that much from other types of assessment, except that there is a clear place for career-specific questionnaires. In his advice, the psychologist does not work towards a conclusion in terms of "suitable" or "not suitable", he looks for the most striking trends in your interests and competences. Above all, the advice indicates a number of suitable career directions.