What is the leading cause of death of children under the age of 1 year?

Which of the following would be an example of qualitative data collection?

Interviewing all of the siblings of a pair of conjoined twins and asking them about their personal interactions. Documenting how many hours of television an eight-year-old child watches per week. Observing and documenting the number of aggressive behaviors demonstrated by three-year-olds in a day-care setting. Measuring the heights and weights of a group of preschoolers.

Who is MOST likely to be depressed?

a) a 70-year-old who has never married b) a 100-year-old who is married, with close friends c) a 90-year-old who is socially isolated and physically frail d) a 65-year-old who has just retired