Final answer:
The MMPI is used to create a clinical profile, and studies have found elevated levels in scales such as alcoholism, somatic symptoms, and anxiety among police officers after exposure to job stress.
Step-by-step explanation:
The Minnesota Multiphasic Personality Inventory (MMPI) is a widely used personality inventory composed of true/false questions that help create a clinical profile of an individual. In studies conducted on individuals such as police officers, certain scales of the MMPI showed elevated levels when the test was administered after the individuals had been in stressful jobs for a period of time. Specifically, after two years on the job, these officers showed increased vulnerability to alcoholism, somatic symptoms, and anxiety. These findings suggest that certain occupational stressors can lead to significant psychological changes, which are reflected in the elevated scores on relevant MMPI scales.