Which of the following best describes the progression of language production in the first three years of life?

Betty's infant daughter cries often and is routinely in negative moods. She reacts to change with difficulty and slowness

According to research conducted by Thomas and Chess, this baby most likely has which of the following types of temperaments? a. anxious b. easy c. difficult d. slow-to-warm-up

At the start of the twentieth century in America, public attitudes toward the

mentally ill a. had become enlightened and humane. b. associated mental disorder with "tainted genes" and divine retribution. c. had become a conviction that the mentally ill were incurable and should be executed or jailed for the rest of their lives. d. were characterized by fear, horror, and ignorance.