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They shouldn't, ever. It defies the whole point of a controlled experiment.

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15y ago

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Related Questions

How many variables should be changed from control group to experiemental group?

no one know's these answers


How many variables can be changed in a controlled experiments?

one


How many variables there be in an experiment?

As few as possible.


How many variables does a scientific investigation have?

As many as are necessary, as few as possible.


How are the variables related to each other?

There are infinitely many possible ways in which two variables can be related to one another.


How many independent variables should you have?

five


What have you learned about variables?

1) I learned that you can have as many variables as you want. 2) You can change the variables. 3) Variables is used in an experiment. 4) A variable is something that can be changed, such as a characteristic or value. Variables are generally used in Psychology experiments to determine if changes to one thing result in changes to another.


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There should be one dependent variables. Depending on the type of research you are doing, the amount of independent variables will change. If you are doing research on a large scale, you will use more independent variables. If it's on a small scale, you will use very little. If you are not able to run your regression it means your sample size is too small or you have too many independent variables.


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Most science experiments will have two independent variables. Fundamentally, an experiment will want as few variables as possible for better results.


How many variables should each experiment have?

one


How many variables should you have to change in an experiment?

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Should a OSHA safety director of a company be bonded?

There are FAR TOO MANY possible variables that are unknown. That is a question best answered by the company's legal adviser or insuror.