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Can a descriptive study have dependent and independent variables?
Yes, think about cause and effect when thinking about this issue. Even to describe or observe a phenomena.
Could you think of some examples of dependent and independent variables?
Yes, an independent/dependant relationship to two things would be heat/volume when working with gas. The volume of object increases as an object gets hotter however an object does not get hotter if the volume increases therefore the volume is dependant on the heat, this makes the volume the dependant variable. Therefore the heat has to be the independent variable.
What is a indenpent variable?
In experimental design there are two variables, the independent variable and the dependent variable. You are allowed manipulate or change one variable to see how that affects results in an experiment you are conducting. Think of it as the variable Ican change. This is the i variable, the independent. The experiment will generate data that responds to these changes. This data is your dependent variable.
How are dependent and independent variables used in an experiment?
An independent variable is the variable that was changed. The dependant is what was measured. Eg. If you filled 3 cups of water - one with 1/4 of a cup, one with half a cup and one with 3/4 of a cup. Then you grab a spoon to find the highest note, then the amount of water is the independent variable and the sound is the dependant.
How do you know the difference between the dependent and the independent variable?
The independent variable is one that does not depend on the other variable. A dependent variable "depends" on the other variable. Think about the distance traveled by a car over time. You have two variables in that, time and distance. Now think about which depends on the other. Does time depend on distance? No. Time will keep going even if the car stops. Does distance depend on time? Yes. The more time that goes on, the more distance is traveled. So distance is the dependent variable, because it depends on time. Time is the independent variable because it doesn't depend on distance.
