In the 1990s, Joseph LeDoux proposed the ______ model of emotion

Clinical psychologists are not able to randomly assign mental illness to one group and not another group. Thus, in studying mental illness such as depression, this is a(n)

a) participant characteristic b) physiological variable. c) stimulus variable. d) experience variable.

Which statement best describes the current view on continuous versus discontinuous development?

A. Development is susceptible to change at an early age but not typically at a later age. B. Discontinuous change occurs from infancy through adolescence; in adulthood, change is continuous. C. Developmental changes across the lifespan involve both abrupt changes and slow, continual change. D. Although development was historically seen as discontinuous, it is now known that numerous slow, continual changes occur over a lifetime.