Examlex
An example of a snack low in energy density is
Experimental Research
A research method that investigates causal relationships by manipulating one variable to see its effect on another, under controlled conditions.
Independent Variable
The variable that is manipulated in an experiment to test its effects on the dependent variable.
Dependent Variable
A variable in an experiment that is expected to change in response to manipulations of the independent variable.
Correlational Study
A research methodology that examines the relationship or association between two or more variables without determining causal direction.
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