Empirical evidence is the evidence gathered by a careful reflection on one's personal experiences

Vygotsky's distinctive contribution to ideas about cognitive development was the stress he placed on

A) the role of culture and society. B) the role of genes and heredity. C) the role of positive reinforcement. D) the role of rote learning and memorization.

Which of the following is true regarding colic?

A) Almost all infants develop colic. B) Colic is a pattern of intense daily periods of crying for one to three hours per day. C) The cause of colic is usually an allergy to infant formula. D) Colic typically begins at about two weeks of age and then disappears spontaneously at three or four months of age.