Question

Consider the following three statements:

As children grow older, their weight increases.
As children grow older, they expand their vocabulary.
As children's weight increases, their vocabulary expands.

Does statement #3 describe a correlational relationship? A causal relationship? Explain your answer.

Answer 1

Actually the third statement would only be classified as correlational relationship.
Correlational relationship means that the one occurrence can occur at the same time with another; they could be associated but does not really imply that one causes the other.