Which of the following methods of data gathering allows the researcher to make a causal inference?

Question

Quizplus · Accepted Answer

Only experiments allow the researcher to manipulate the independent variable and control for other potential confounding variables, therefore allowing for causal inference to be made. Interviews, questionnaires, and participant observations do not allow for direct manipulation of variables, and/or may not control for all potential confounding variables.

Which of the Following Methods of Data Gathering Allows the Researcher