A correlational study is a research design that examines the relationships between two or more variables. It is non-experimental, meaning the experimenter does not manipulate or control any variables.

Ecologists and evolutionary biologists are well aware that natural and sexual selection do not operate on traits in isolation, but instead act on combinations of traits. This long-recognized and ...

Crime rates rise with ice cream consumption. Divorce rates rise as people use more margarine. These are classic examples of spurious correlations (Fletcher, 2014). Statistically, these variables move ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Crime rates rise with ice cream consumption. Divorce rates rise as people use more margarine. These are classic examples of spurious correlations (Fletcher, 2014). Statistically, these variables move ...