Descriptive research seeks to depict what already exists in a group or population.
A variable is something that can be changed, such as a characteristic or value.
Cross-sectional research takes place at a single point in time.
Longitudinal research is a study that takes place over a period of time.
causation One of the most important distinctions to make when discussing the relationship between variables is the meaning.
A correlation is the measurement of the relationship between two variables.
