The Propaganda Corporation wants to know whether 10-year-olds,12-year-olds,or 14-year-olds are most likely to respond to a new advertising approach.Which of the following research designs will provide the most useful results?
A) Sequential
B) Cross-sectional
C) Longitudinal
D) Pretest-posttest experimental

Question

Quizplus · Accepted Answer

A cross-sectional research design compares different groups at the same point in time. In this case, the Propaganda Corporation wants to compare the response rates of 10-year-olds, 12-year-olds, and 14-year-olds. Therefore, a cross-sectional research design would be most useful for this study. A sequential design involves studying different groups at different points in time, a longitudinal design follows the same group over time, and a pretest-posttest experimental design measures the effects of an intervention or treatment on a single group over time. None of these designs would be as useful for comparing the response rates of different age groups to a new advertising approach.

The Propaganda Corporation Wants to Know Whether 10-Year-Olds,12-Year-Olds,or 14-Year-Olds Are