At its most elementary level, which of the following is based on experiences with positive and negative instances?

Which of the following describes the temperaments classified by Chess and Thomas as slow-to-warm-up?

a. distant and unfriendly b. unpredictable and challenging c. friendly and obey rules d. shy and withdrawn

Although most children have medical care in the United States, fewer than 80% receive the full recommended

a. medical check-ups. b. treatment for colds. c. treatment for otitis media. d. set of vaccinations against serious disease.