What percent of all U.S. violent crime arrests in 2006 were juveniles?

Researchers have suggested that people can be divided into chronotypes. A chronotype identifies an individual as a(n)

a. light sleeper or a deep sleeper. b. morning type or an evening type. c. thin body type or a heavy body type. d. extraverted person or an introverted person.

Researchers have found that about two-thirds of all parent-child interactions with two-year-olds

A) are positive, enjoyable, and playful. B) involve the parent telling the toddler not to do something. C) demonstrate warmth and affection between the two. D) involve the child repeatedly ignoring the parent.