Six-month-old infants who watch a toy fall off their high chair do so because:
a. they are sad to see it drop.
b. they have some understanding that the object still exists.
c. the object will always make a good sound when it drops.
d. the infant is bored and has nothing else to watch.
B. At this age, infants have some understanding that the object still exists so they follow it off the table.
Psychology
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a. bio-sexual theory b. psychosexual theory c. sexual stage theory d. libido-drive theory
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Shivering, sweating, nausea, vomiting, diarrhea, cramps, and muscle spasms are symptoms of
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