Lester's research on infant crying has shown that
A) all infants' cries are alike.
B) infants with higher-pitched cries had lower IQ scores at five years of age.
C) low-pitched cries are an indication of mental retardation.
D) babies exposed to methadone had cries which were similar to normal babies.
E) babies' cries have no specific meaning.
Correct Answer:
Verified
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