| A | B | 
| abnormal psychology | branch of psychology that studies unusual patterns of behavior, emotion and thought | 
| clinical psychology | the applied field of psychology that seeks to assess, understand and treat psychological conditions | 
| Hippocrates | father of Western medicine | 
| reductionism | explaining a disorder or other complex phenomena using only a single idea or perspective | 
| precipitating cause | an immediate trigger that instigates a person's action or behavior | 
| predisposing cause | an underlying factor that interacts with the immediate factors to result in a disorder | 
| multiple causality | explaining mental disorders with a combination of theoretical perspectives | 
| statistical abnormailty | a certain behavior/characteristic is relevant to a low percentage of the population | 
| psychometric abnormality | a certain behavior/characteristic differs from the population's normal dispersion | 
| somatogenic | abnormality is seen as a result of biological disorders in the brain | 
| psychogenic | abnormality is caused by psychological problems | 
| DSM-IV | It lists a set of disorders and provides detailed descriptions on what constitutes a disorder | 
| Axis I | Symptom Disorders | 
| Axis II | Personality Disorders | 
| Axis III | General medical conditions | 
| Axis IV | Psychosocial/environmental problems | 
| Axis V | Global assessment of functioning | 
| ICD-10 | major international nosologic system for the classification of mental disorders |