We argue that clinical information related to an object-relations model of personality pathology can be used by untrained and clinically inexperienced students to rate personality-disordered patients on the Level of Personality Functioning Scale (LPFS). To do so, 73 clinically inexperienced undergraduate students were asked to assess personality functioning of 10 female inpatients using the LPFS from audio recordings of the Structured Interview of Personality Organization (STIPO). LPFS ratings showed acceptable interrater reliability. Moreover, LPFS ratings were significantly associated with external measures of severity of personality pathology (number of DSM-IV-TR personality disorders) as assessed by experienced clinicians. Finally, the students' ratings were also associated with the level of personality organization as measured by experienced clinicians using the STIPO. Our findings confirm that untrained raters can reliably assess personality pathology by rating the LPFS based on material from the STIPO. Implications related to the use of the STIPO as a tool for the assessment of personality pathology according to the DSM-5 Alternative model are discussed.