Incentives are external stimuli or rewards that motivate behavior, although they do not relate directly to biological needs

Vygotsky's sociocultural theory emphasizes

A) the interconnectedness of the influences of development. B) daily reinforcements one receives in the environment. C) cognitive neuroscience processes. D) how cognitive development proceeds as a result of social interactions.

Barbie has complained of an unexplained illness for several years. She has had many painful and high-risk surgeries and other treatments, which she has willingly undergone. In fact, she seems to enjoy playing the "sick role." She gets extremely angry when anyone questions whether she really has an actual physical problem. These symptoms suggest that Barbie suffers from ____

a. malingering b. somatic symptom disorder c. factitious disorder d. illness anxiety disorder