Which method of data collection allows researchers to determine with a high degree of certainty whether an independent and dependent variable are causally related?

Question

Quizplus · Accepted Answer

Experiment is the only method of data collection that allows researchers to manipulate the independent variable and control other factors to determine causality between the independent and dependent variable. Other methods of data collection, such as observation, surveys, or secondary data analysis, cannot establish causality with a high degree of certainty.

Which Method of Data Collection Allows Researchers to Determine with a High