Which statement is supported by research on babbling?
A) For babbling to fully develop, infants must be able to hear human speech.
B) Western babies start babbling sooner than non-Western babies.
C) Deaf infants do not start babbling until much later than hearing infants.
D) Babies with hearing impairments produce the greatest diversity of babbling sounds.
Answer: A
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Research on the dynamic-systems approach has shown that some traits can be entirely genetic or entirely environmental
Indicate whether this statement is true or false.
Understanding the etiology of culture-bound syndromes is made difficult for all of the
following EXCEPT for the fact that a. they are often characterized in terms folk medicine. b. a world-wide classification scheme for mental disorders does not exist. c. they have not been the subject of much research. d. intercultural variation is extensive. e. they do not have environmental sources.
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