Psychology is the scientific study of human thought, emotions, and actions. Psychology helps us to understand human behaviour. It attempts to explain why we behave in the way that we do and explores questions such as:
Why do people take risks?
Why do good people do bad things?
How does culture influence behaviour?
What is the nature of intelligence?
Psychologists test their theories scientifically. Once they have done so, they are in a position to offer an explanation for observed behaviour.
Psychology addresses questions by deconstructing patterns of thinking, emotion, and behaviour, and identifying and challenging assumptions, theories, and mores.
In psychology, the term "approach" refers to a paradigm or set of principles based on beliefs about people and the way that they function. Different approaches may offer different explanations for behaviours.
Each approach influences which aspects of people will be studied and what methods of inquiry will be chosen. For example:
Biological researchers look at the chemical and neurological processes that affect us.
Behaviourists look at how the environment conditions affect us.
Cognitive psychologists examine the mind as an information-processing machine.
Psychodynamic psychologists look at the hidden impulses and desires we have, and how these affect our behaviour.
Humanists see people as a whole – as unique beings with an ability to reach our potential.
Socio-cultural psychologists focus on understanding cultures from their own ecological, historical, philosophical, and religious perspectives.
Evolutionary psychologists see behaviour as a result of the process of gradual change in which genes are passed on within a population.
In practice, psychologists may disagree greatly in the explanations they offer. This is a reflection of the richness and complexity of human behaviour.
(information about psychology in NZ senior secondary schools, sourced from TKI)