With group differences,
a. the differences between groups are always quite large.
b. the differences between groups are always very small.
c. variation on a skill is larger within the group than between the groups.
d. variation is impossible to predict, because you do not examine individual cases.
c
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Describe the sequence of language development during the first two years, and give an example of each type of communication. Why does this sequence develop in this way?
What will be an ideal response?
Piaget thought the shift to concrete operations was fairly __________, but researchers today believe that it is more __________.
A. gradual; sudden B. sudden; gradual C. early; late D. important; irrelevant
Zajonc (1993) argued that smiling leads to an increase in positive emotions through which mechanism?
a. stimulating electrical impulses that activate the pleasure pathways in the brain b. increasing the release of pleasure-enhancing endorphins between neurons c. stimulating sympathetic nervous arousal that increases one's pulse d. increasing the flow of air-cooled blood to the brain
During stress, corticotrophin-releasing hormone targets the the _______
a. hypothalamus; pituitary gland b. pituitary gland; adrenal glands c. adrenal cortex; adrenal medulla d. adrenal medulla; adrenal cortex e. pituitary gland; hypothalamus, while adrenocorticotrophic hormone targets