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jun 29, 1890 - New event

Description:

Pearson y Spearman. Psicólogos matemáticos. Situan las bases matemáticas para la Psicología Diferencial.

Added to timeline:

Instrumentos de Medición

ByPatty Muñoz
10 Dec 2018
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Date:

jun 29, 1890
Now
~ 135 years ago
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