The profession of a paramedic involves a constant contact with traumatic events - road accidents, disasters, acts of violence and so on. As a consequence of such frequent and long-lasting exposure to traumatic events, paramedics are prone to developing PTSD (Posttraumatic Stress Disorder). This is a chronic disorder impacting cognitive, emotional, behavioral and somatic experiences. As a result of a prolonged exposure to stressful events, such condition can be life threatening. There are two ways of diagnosing PTSD: structured interviews and self-rating questionnaires (self-rating scales). The researcher should choose the best method possible relying not only on its procedure. In addition, merit based factors and psychometric parameters sho...