Final answer:
Jane's behavior suggests symptoms of Paranoid Personality Disorder, characterized by pervasive distrust and suspicion, and demonstrates an external locus of control by attributing her poor grade to her professor's personal dislike rather than her own actions.
Step-by-step explanation:
Jane's perception that people's actions are a personal attack on her, alongside her defensive demeanor and preparation for confrontations, may suggest a tendency characteristic of a personality disorder. Specifically, these behaviors can be indicative of Paranoid Personality Disorder (PPD). This disorder is marked by a pervasive distrust and suspicion of others, where their motives are interpreted as malevolent. In the context of academic performance, if Jane believes that she got a bad grade on a psychology paper because her professor doesn't like her, it demonstrates an external locus of control; she attributes the outcome to external factors rather than her own efforts or abilities.