At or before nine months of age, most children begin to _____. This activity is one of the earliest milestones in developing a theory of mind

a. talk
b. show prosocial behavior
c. engage in joint attention
d. demonstrate the ability to recognize themselves in a mirror

c

Psychology

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The Piagetian term for a particular type of centration in which the child thinks about the world only from his personal perspective is

static reasoning. egocentrism. irreversibility. conservatism.

Psychology

All of the following terms refer to basic units of language EXCEPT:

a. schemas b. morphemes c. syntax d. phonemes

Psychology