Response Variable vs. Explanatory variable
Included In This Lesson
Outline
Overview
- Variables
- Response (dependent) variable
- the variable that is being observed/measured.
- Graphed on y-axis
- Explanatory (independent) variable
- the variable that is intentionally manipulated.
- Graphed on X axis.
- Example experiment: Researcher wants to know effectiveness of a drug in males and females.
- Explanatory variable is the drug treatment.
- The response variable is the measure of effectiveness.
- Response (dependent) variable
Transcript
Today we’re going to be talking about a response variable vs. an explanatory variable.
The response variable is the variable in an experiment that is the dependent variable. It is what is going to be measured or observed and once those values are obtained and ready to be graphed they go on the y axis usually.
The explanatory variable is the independent variable. it is the variable that has been intentionally manipulated/changed. It is typically graphed on the X axis.
So an example experiment would be if a researcher wanted to know the effectiveness of a drug on males and females. The explanatory variable is the drug treatment. So the amount of drug given to different test groups. The response variable would be the measure of effectiveness of the drug in response to the amount drug received by the individual. And one way to remember these two is the phrase DRY- MIX… the dependent variable is the response variable and on the y axis. and MIX, the manipulated variable is the independent variable and on the x axis.
In summary, there are two variables in an experiment. The response variable is dependent variable which is measured/observed in response to the changes of the Explanatory variable or independent variable that is manipulated. And DRY MIX is short phrase to remember which is which.
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