Who is often considered to be the father of adolescent development and coined the idea that adolescence is a time of "storm and stress"?

Research psychologists typically use convenience samples—groups of people who are easily recruited and studied. A ________ sample would be most accurate because it consists of a larger group of the population of interest

a. representative b. specific c. cross-sectional d. easily measured

Which statement reflects the core idea of the facial-feedback hypothesis?

a) Men do not express emotion via the face. b) Facial features have no connection with emotion. c) Information from facial muscles intensifies emotional experiences. d) When one facial expression occurs, we quickly register its opposite on the face.