This study guide introduces the basic paradigms of psychology, gives an example of each, and offers the writer's opinion of their accuracy. It concludes that psychology is not a hard science. Psychology is not an absolute science like physics. It involves human behavior and human interactions and it is not always predictable. Unlike some other exact sciences, psychology has numerous approaches and theories relative to it that seek to explain human behavior or provide different perspectives on how to examine human behavior reactive to culture and biology. There is no one particular approach to psychology that can be deemed correct or more valuable then others, but the holistic approach is becoming quite popular and it may be among the most balanced of the paradigms for psychology.