Recent research figures show that, overall, the number of adolescents who smoke is decreasing

Children whose parents are cold and neglectful are

A) less popular with peers and perform poorly at school. B) very nonaggressive and very friendly with others. C) popular with peers, but perform poorly at school. D) less popular with peers, but perform well in school.

Research on handedness demonstrates that

A) handedness is strongest for simple skills requiring little practice or training. B) the orientation of most fetuses—facing toward the right—probably causes right-handedness. C) right-handers are more likely than left-handers to develop outstanding verbal and mathematical talents. D) most left-handers have no developmental problems.