
Every field consists of scientific evidence that supports findings. Serial researches are conducted and conclusions are empirically tested to prove they are correct. The psychology field is no different and to deal with social problems, one uses psychology theory developed from various information sources. You can access sources like libraries, magazines, journals and online publications.
The available information is pooled together, which allows professionals to work through it and find solutions that work. This is only possible if the concerned parties are willing to work together. Psychological theories are used in various areas, for instance in criminal investigations. Psychologists use information from police and eye witnesses to come up with theories about criminal behavior and give the police recommendations actions to take.
Sometimes its hard to investigate a criminal but when you apply psychological theory it becomes possible. Eyewitnesses and information from police will guide the criminal psychologist to come up with a theory about criminal's behavior. The findings will dictate the next move and detailed information of the criminal will guarantee accuracy. You can deduct a theory about interactions by reading history books. Major events that happened in history are recorded and are useful as you deal with human interaction.
Read more about journal of social psychology and grief counseling.