Correlations differ to experiments as the variables are simply measured, not manipulated like in experiments, and only an association is found, no cause-and-effect relationship found hence the terms DV and IV are not used
As one variable increases, so does the other but only up to a certain point after which as one variable continues to increase the other begins to decrease
It is difficult to establish a cause and effect relationship, really only an association is found
The third variable problem is presented - this is when there is a chance that there is another variable, a third variable which the researcher is unaware of that is responsible for the relationship between the co-variables
Correlations tend to be misused or misinterpreted especially when made public by the media - correlation is often presented as causation