In environmental science, experimental design is an extremely important part of the scientific method. When a scientist seeks to prove or disprove a hypothesis, he or she must carefully design the experiment so that it tests only one thing, or variable.
Borderline personality disorder (BPD), also known as emotionally unstable personality disorder, is a long term pattern of abnormal behavior characterized by unstable relationships with other people, unstable sense of self, and unstable emotions.
~ 5 min read. The symptoms of borderline personality disorder include: a recurring pattern of instability in relationships, efforts to avoid abandonment, identity disturbance, impulsivity, emotional instability, and chronic feelings of emptiness, among other symptoms.