By about 12 months, most infants

a. begin to use intonation in their language.
b. build a vocabulary of one-word phrases.
c. begin to distinguish, in their language, between themselves and others.
d. begin to form two- and three-word sentences.
e. can read about 100 words in print.

b. build a vocabulary of one-word phrases.

Psychology

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How did the liberalization of sexual conduct after the Revolutionary War affect sexuality in the United States? a. Extramarital affairs were rarely heard of

b. Contraception such as condoms was readily available. c. Birth rates increased dramatically. d. The church strengthened their power related to sexuality during this time.

Psychology

The field study by Piliavin, Rodin, and Piliavin (1969) on bystander intervention showed that

a. people were more likely to help an ill victim than a drunk victim. b. people were less likely to intervene when a crowd was present. c. people were more likely to help a white victim than a black victim. d. victim characteristics were not related to helping behavior.

Psychology