For JB Watson, the proper subject matter of psychology was _________________.

Good quality child care

A) cannot compensate for the negative effects of a stressed, poverty-stricken home life. B) can reduce the negative impact of a stressed, poverty-stricken home life. C) is more readily available in the United States than in most European countries. D) is primarily available to low-SES families with young children.

Which statement about attachment and sibling relationships is true?

A) In the United States, about 40 percent of children grow up with at least one sibling. B) At least temporarily, most preschoolers respond to the arrival of a new baby with greater emotional self-regulation. C) Babies are usually comforted by the presence of a preschool-age brother or sister during short parental absences. D) The likelihood of sibling conflict is not affected by children’s temperamental traits.