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Physics 14 Online
OpenStudy (anonymous):

Which of the following could negatively affect the reliability of an experiment? testing only one variable at a time Or having variables that are difficult or even impossible to control

OpenStudy (anonymous):

Having variables that are difficult or even impossible to control... an experiment is not reliable unless you are able to control at least one aspect of it. You must have a dependent, and independent variable.

OpenStudy (anonymous):

Thank You ^.^

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