The ParaGard IUD can be left in place for up to ____ years

As the proportion of less-affluent students attending high school rose during the second half of the twentieth century,

A) adolescents became more likely to forgo work to concentrate on academics. B) working full-time jobs became less common. C) working part-time jobs became less common. D) part-time work became more common.

Hannah is 2 days old and lying quietly in her crib in the hospital nursery. The infant in the crib next to her wakes up hungry and begins crying. Hannah starts crying too. This is an example of

A) difficult temperament. B) emotion contagion. C) coordinated imitation. D) social referencing.