The article At a Loss for Words, about a teenager (E. M.) who was profoundly deaf in early life concluded that:
(a) there is no sensitive period for language development
(b) there is a sensitive period for language development but with hard work, any language can be acquired even after long deprivation
(c) there seems to be a sensitive period for language development
(d) there is a sensitive period for hearing, but not for speaking
C
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What research advantage is present when studying behavioral differences in monozygotic twins?
Since the twins have different genotypes at birth, behavioral differences can more likely be attributed to nature rather than nurture. Since the twins maintain identical genotypes throughout their lifetimes, behavioral differences are 100 percent attributable to differences in their environments. Since the twins have identical genotypes at birth, behavioral differences can more likely be attributed to differences in their environments. Since the twins are born with identical phenotypes, behavioral differences will also be identical.
Observational learning may occur when one person observes another's behavior, and it
involves all of the following EXCEPT a. changes in the observer's behavior. b. the consequences of the other person's behavior. c. a weakening of the other person's behavior as a consequence of being observed. d. the stimuli that were present when the other person's behavior occurred. e. a special case known as imitation, when the observer's behavior matches the other person's behavior.