What are the relationships between psychology and social psychology?

Psychology is a very broad term. There are very many different psychology fields, and social psychology is one of them, it focuses mainly on interpersonal behavior and role of social forces in governing behavior. e.g. attitude formation, prejudice, conformity, attraction, aggression, group behavior.

Other Psychology fields includes but not limited to, developmental psychology, experimental psychology, physiological psychology, cognitive psychology, personality, psychometric, evolution psychology, forensic psychology, criminal psychology.....