According to ecological theory, why do children develop stranger anxiety?
a. It suggests that children think their parents have abandoned them, thus reducing the availability of breastmilk.
b. It may be a survival strategy that enables babies to perceive unfamiliar faces as potentially threatening.
c. It is a fear response, also named the "Moro Reflex," that helps children alert other children to the presence of danger.
d. It goes back to the Stone Age, when children would cry when a potential predator appeared at the entrance of caves. This signaled to the parent to go into "protection" mode.
Answer: B
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While participating in an image rotation study, you responded very slowly to some items that shared certain characteristics. What is the likely reason for these slow responses?
a) Your attention wandered on those items. b) Those images required larger degrees of rotation. c) You were unable to create a visual image of those items due to fatigue. d) Those items were symbolic of trauma you experienced during childhood.
The major problem with biographical studies is that they ______
a. take longer to run than longitudinal studies b. don't distinguish age differences from cohort differences c. are less trustworthy than either cross-sectional or longitudinal studies d. don't track long-term changes among individuals in the study