心理学是一门广泛的学科，包括对人类行为和心理过程的科学研究，以及在诸如心理健康（临床心理学），工作（组织心理学），教育或体育等特定情况下系统地应用这些知识。许多学习心理学的人不会继续成为心理学家，但是会发现他们对心理学的培训在他们的生活和工作中具有高度相关性和实用性。成为心理学家的人可以在各种环境中工作，包括医院，学校，政府机构，大型公司或私人执业。
Psychology is a broad ranging discipline that includes the scientific study of human behaviour and mental processes, and the systematic application of this knowledge in specific contexts such as mental health (clinical psychology), work (organisational psychology), education or sport. Many people who study psychology will not go on to become psychologists, but will find their training in psychology to be highly relevant and useful in their lives and work. Those who do become psychologists may work in a variety of settings including hospitals, schools, government bodies, large corporations, or in private practice.