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OpenStudy (anonymous):

A controlled scientific investigation determines the effect of a(n) _______ variable in an experiment. A.dependent B.independent C.constant D.fixed

OpenStudy (anonymous):

@sachine94

OpenStudy (anonymous):

@sachine94 , think you can help with this one ?

OpenStudy (anonymous):

independent: you change it, dependent: you change something which changes it. you don't determine the effect of something if you hold it constant or fixed, therefore the answer it A

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