The best way to settle questions of causation is
A) a careful observational study.
B) a properly designed experiment.
C) to draw a scatterplot.
D) to draw a line graph.
E) to calculate a correlation.

Question

Quizplus · Accepted Answer

A properly designed experiment allows for manipulation of the potential cause in order to determine if it does indeed lead to the observed effect. This approach offers the strongest evidence for causation. Observational studies, scatterplots, line graphs, and correlations can provide insights into potential associations between variables, but do not establish causality.

The Best Way to Settle Questions of Causation Is