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jan 1, 1917 - Early Group Testing Robert Yerkes --} american psychologist --} convinced army to test WWI recruits * Army Alpha > designed for average, high-funtioning recruits * Army Beta > designed for immigrant, illiterate recruits

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Timeline of the Development of Psychology

ByYhummhie Sarabia- Baldonaza
20 Oct 2017
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Date:

jan 1, 1917
Now
~ 109 years ago

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