definitions
aim- what the researcher wants to achieve
theory- the thing the researcher believes about something before they research it
method- the way the researcher will carry out the experiment eg.LAB
procedure- the step by step way the experiment will be carried out
objective- only having scientific/ factual opinions and not being biased.

ORIGINS OF PSYCHOLOGY-
cartesian dualism -> mind and body are seperate
john locke-> empiricism-> we start blank and create things from experience (sensory observation)

BIOLOGICAL EXPLANATION -
low levels of serotonin- lowers mood
high levels of dopamine- psychosis; schizophrenia; anxiety.
Metal disorders passed down due to genetics.
high levels of testosterone- aggression, sexual frustration.
Brain Injuries.

COGNITIVE EXPLANATION-
faulty thought process; ways of perception; taken from rejection - could of give them a new way of perceiving life
SCHEMAS -> reactions are dependant on schemas (learning from experiences)
Family conflict could result in imitation