Ellie is a graduate student in psychology at the local university. She is interested in one day specializing in the study of abnormal behavior. What area of psychology should she focus on in school?

Several periods of development do not have clear biological boundaries. Rather, their limits are

determined by a. cognition. b. peer interaction. c. parental expectations. d. culture.

The term used to refer to people in their 90s is which of the following?

a. octogenarians b. Decagenarians c. nonagenarians d. septuagenarians