Functionalism

In 1859, Charles Darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation.

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1890 William James published ‘Principles of Psychology,’ that later became the foundation for functionalism.

1896 Writings by John Dewey began the school of thought known as functionalism.

Angell laid out his three major points about functionalism during his presidential address for the American Psychological Association.

mary calkins
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The behaviorist movement began in 1913 when John Watson wrote an article entitled 'Psychology as the behaviorist views it'

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