Zhao's research interest is to determine if poverty causes one to be more politically liberal. However, he cannot randomly assign people to conditions of poverty versus wealth because (aside from the practical difficulty) it would be unethical to do so. Zhao will have to ____.

A) conduct a field experiment
B) take a correlational approach
C) do a meta-analysis
D) develop a factorial design

Correlational Approach

A nonexperimental method in which the researcher merely observes whether variables are associated or related.

Field Experiment

A study conducted in a real-world setting where the researcher manipulates one or more variables to observe their effect on a specific outcome.

Meta-analysis

A statistical technique that combines the results of multiple scientific studies to obtain a more precise effect size of the results.