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Why are control groups used in statistical studies?
Because its the group for which the idependent variable is help constand in a statistical study.
What is control variable and manipulated variable?
a control variable is a variable that needs to be controlled
What is independent variable in a research?
An independent variable does not change. It is independent of everything else In research, there needs to be a dependant variable.
What is a dependent variable in research?
The dependent variable is the variable that the researcher does not control. The researcher will change one variable called the independent variable (ex. temperature, amount of sunlight, amount of food, etc.) and then observe the corresponding dependent variable (ex. reaction of organism, amount of plant growth, swimming speed, etc.)
What is the difference of independent variable and a dependent variable?
An independent variable is when you do not control what happens In an experiment,however; a dependent variable is when you actually control the experiment,
