Based on what we currently know of human history and what we know of traditional cultures, what has been the typical human custom regarding breast-feeding? Infants were weaned ____

When our mental activity undergoes a change in quality or pattern, this is called a(n) _____.

Fill in the blank(s) with the appropriate word(s).

Variables controlling a person’s behavior externally are called

A) person variables. B) situation variables. C) introspective variables. D) unconscious variables.