Psychology viewed as an old discipline. Psychology can trace its roots to the 5 century BC to the Greek philosophers such as Plato, Aristotle and Socrates, because we grapple with the same questions they attempted to answer. On the other hand, we could view psychology as emerging when philosophy and physiology merged to include experimentation and empirical methods to answer those questions about 200 years ago. Thus, it also viewed as a new discipline in 1879, which the approach taken to study make psychology became a science and distinguish from the older discipline philosophy and form modem psychology. Modern psychology can be considered a product of 19th century thought because this is the time when the field developed its own independent methods and became its own independent discipline. Philosopher studied human nature via speculation, intuition and generalization based on their own experience, while psychology applied the tool and methods of biological and physical science, with controlled observation and experimentation. Psychology attain an identity separate from philosophical roots
One can also see the influence of the historical context on the formation of the field. The zeitgeist of the time can have a tremendous influence on what the focus of psychology is at any given time. For example, during the world wars, psychological testing, personnel selection and engineering psychology were emphasized.
For example, the economic influence in 1900. As psychology as a newest science received small amount of financial support, while little jobs are available for earn a living. Thus, prevalence of applied psychology to showed its importance in order to receive more money.
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Even through Wundt had trained many of the first American psychologists, his ideas had little influence on their