The onset of social referencing coincides with the age at which the child first becomes capable of
a. recognizing and interpreting others' displayed emotions.
b. climbing inside an internal working model.
c. talking about the Kewpie doll effect.
d. using grammatical morphemes.
Question 2
If the correlation on a trait were .75 for identical twins, .55 for siblings, .23 for cousins, and .11 for genetically unrelated adopted siblings, one could conclude that
a. heredity plays no role in that trait.
b. environment plays no role in that trait.
c. heredity is a prime contributor to that trait, but environment also plays a role.
d. environment is the prime contributor to that trait, with heredity making only a minor contribution.
Comparing fossil patterns of the Hadar Baby, the Taung Child, and Au. Robustus.
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Using child-sized dishes at mealtimes can help caregivers monitor portion sizes
A representative karyotype and a photograph of a child