__________ refers to behavior intended to harm others

According to Thomas and Chess, a child that is very irregular in sleeping and eating, resists change, and tends to be loud is labeled a(n)_____________ child

a) easy b) difficult c) slow-to-warm-up d) negative

Research on children conceived by artificial insemination and in vitro fertilization indicates that these children

A) are usually told how they were conceived. B) have higher rates of emotional problems. C) tend to be smaller than other children. D) do not have any particular developmental problems.