Quiz Question Ch. 8

In an experiment, when assigning a subject to a control or experimental group which method would be most effective in studying a large population?

A. Probability Sampling

B. Randomization

C. Matching

D. Web-Based Sampling

A. Nope. In social scientific experiments many subjects are not involved, and probability sampling is not fairly representative if there is less than 100 subjects. This means that probability sampling is seldom used in large populations.

B. THIS IS CORRECT. Randomization works with large populations because each sample (control and experimental) reflects the characteristics of the total population. This means that the two samples will reflect each other.

C. Wrong. Matching is a way to achieve comparability between the control and experimental groups . When separating the groups into sample and control through the process of matching you may not always know what variables will be relevant for the matching process.

D. Wrong, because I made up the term and it just doesn’t make sense.