Correlation tests for a relationship between two variables. However, seeing two variables moving together does not necessarily mean we know whether one variable causes the other to occur. This is why we commonly say “correlation does not imply causation.”

Does correlation imply causation yes or no?

Correlation alone never implies causation. It's that simple. But it's very rare to have only a correlation between two variables. Often you also know something about what those variables are and a theory, or theories, suggesting why there might be a causal relationship between the variables.

Does correlation imply causation examples?

Often times, people naively state a change in one variable causes a change in another variable. They may have evidence from real-world experiences that indicate a correlation between the two variables, but correlation does not imply causation! For example, more sleep will cause you to perform better at work.