By age 2, a child's brain has

a. reached 50% of its adult weight.
b. reached 75% of its adult weight.
c. reached 90% of its adult weight.
d. acquired all the neurons it will ever acquire.

b

Psychology

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Adolescents who are friends with single members of a clique or, in rarer cases, have no friends are referred to as

A) liaisons. B) independents. C) isolates. D) normals.

Psychology

Communication such as a speech or television advertisement that advocates a particular side of an issue is considered

a. propaganda. b. persuasive communication. c. external justification. d. marketing research.

Psychology