Chapter 4.pdf - Chapter 4 1. What is the most important...

Chapter 4
1. What is the most important purpose of a research design?
(a) To most effectively control for as many confounding variables as possible, thus leaving the
relationship between X and Y unpolluted by outside influences.
(b) To be sure that the sample chosen faithfully represents the underlying population.
(c) To review the existing literature on a topic in as thorough a manner as possible so that the researcher
can be certain that his or her proposed work has not already been done by another scholar.
(d) To prove with mathematical logic that X causes Y.
2. Which of the following is true if a study used random sampling to select its participants?