Jerome Kagan (born 1929) was one of the key pioneers of developmental psychology. Daniel and Amy Starch Research Professor of Psychology, Emeritus at Harvard University, he has shown that an infant's "temperament" is quite stable over time, in that certain behaviors in infancy are predictive of certain other behavior patterns in adolescence. In an empirical study by Haggbloom et al using six criteria such as citations and recognition, … Wikipedia
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