This paper reports the results of the multivariate analysis of a situational judgement test (problem-situations contextualized with multiple choice questions) used as a tool to recruit highway patrollers. The main goal was to study the structure of the test. To do so, we carried out a Multiple Correspondence Analysis (MCA) over 849 participants' answers to twelve questions. This analysis has highlighted three main dimensions in the test, which we named "hierarchy" (axis 1), "discernment" (axis 2) and "safety" (axis 3). The score, calculated according to expert criteria, yields an overall assessment of candidates, while the MCA allows a more varied diagnosis, that takes into account the dimensions underlying the test as well as individual differences.