Dr Kim Has Noticed That Many 4-Year-Olds Are Very Kind

Multiple Choice

Dr. Kim has noticed that many 4-year-olds are very kind and caring toward their younger siblings. She wants to find out if 4-year-olds who are especially kind at home are equally kind and caring with their preschool classmates. Which data collection technique would be most useful for this purpose?

A) interviews
B) a paper-pencil test
C) one or more physiological measures
D) observation