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.
Borderline Personality Disorder (BPD) is a disorder characterized by chronic, stable patterns of emotional distress, mainly relating to concerns about self-identity and relationships with others. People with BPD report feeling extremely emotional yet empty and cannot bear the thought of being abandoned.