Memory improves dramatically between five to ten years of age and then again by the age of 18

Unlike groups that are merely social groups, cultural groups ____

a. promote safety b. find and share food c. can complete tasks that individual group members cannot complete alone d. preserve information

An infant who is timid and shy may be at risk for developing an anxiety disorder. Timidity and shyness are considered which type of risk factor?

a. general b. developmental c. specific d. familial