The following brief descriptions of survey studies represent examples of the three major survey designs that have been introduced in this chapter: cross-sectional design, successive independent samples design, and longitudinal design. Identify the type of design used in each survey. (Some designs are used more than once).

1		Children from the 4th grade, 6th grade, and 8th grade of a public elementary school are asked about the number of hours they watch TV each week. Twenty children, 10 males and 10 females, are surveyed in each grade.
			A)	cross-sectional design
			B)	successive independent sample design
			C)	longitudinal design
2		First-year students attending a small Midwest college are asked whether or not they smoke cigarettes. Responses are obtained from a total of 215 students in 1970 and from 313 students in 1990.
			A)	cross-sectional design
			B)	successive independent sample design
			C)	longitudinal design
3		All the faculty members of a large public university are surveyed regarding their attitudes toward changes in the university's core curriculum.
			A)	cross-sectional design
			B)	successive independent sample design
			C)	longitudinal design
4		Students enrolled in a large introductory psychology class are asked at the beginning of the semester and at the end of the semester about their intentions to major in psychology.
			A)	cross-sectional design
			B)	successive independent sample design
			C)	longitudinal design
5		Responses to a questionnaire containing items asking about the use of animals in scientific research are compared between members of two different scientific organizations.
			A)	cross-sectional design
			B)	successive independent sample design
			C)	longitudinal design