Well .. I have the same question .. but this is what i found out ... the MV is what u change delibretly and the CV is what u dont want to change ... but what i am doing is adding somethng to three diffrent think although per trial i am diffrencent ammount of my MV per thing I am adding the same ammount per trial so i will consider it as an CV but its up to you . Well .. I have the same question .. but this is what i found out ... the MV is what u change delibretly and the CV is what u dont want to change ... but what i am doing is adding somethng to three diffrent think although per trial i am diffrencent ammount of my MV per thing I am adding the same ammount per trial so i will consider it as an CV but its up to you .
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a control variable is a variable that needs to be controlled
a controlled experiment must have only one manipulated variable becuase if the experiment had multiple manipulated variables then it would not be a controlled experiment anymore it would be a manipulated Deseret experiment
Controlled
There is no answer to a manipulated variable because "a manipulated variable" is not a question!
the controlled variables are the factors that are kept constant during an experiment. if they are not kept constant then they may affect the outcome of the experiment. the manipulated variable is the factor that is different between the experiment and the control. the responding variable is the variable that is being measured in the experiment.