non-experimental method

• A single variable study is where the researcher measures a single variable.
• A correlation is when two variables share an association.
• A negative correlation is when a variable gets bigger, the other gets smaller.
• A positive correlation is when a variable gets bigger, the other gets bigger.
• A correlational study is when the researcher measures 2​ variables and looks at whether they are correlated.
• A strength of correlational studies is that they are often cheaper and more practical to conduct than experiments and are less likely to be unethical than experiments. However, correlation does not be causation