The two variables may be related by cause and effect. The dependent variable is the variable that changes in response to the independent variable. The independent variable is the one the experimenter controls. The independent and dependent variables are the two key variables in a science experiment. People also ask, what is the experimental variable and what is the dependent variable? Any change in a control variable in an experiment would invalidate the correlation of dependent variables (DV) to the independent variable (IV), thus skewing the results. Secondly, what is the control variable in an experiment? Essentially, a control variable is what is kept the same throughout the experiment, and it is not of primary concern in the experimental outcome. variable quantity, variable - a quantity that can assume any of a set of values. experimental variable - (statistics) a variable whose values are independent of changes in the values of other variables. It describes the factors that differ between the test and the control samples, which you are investigating (Figure 7).īeside this, what is the experimental variable in a science experiment? The experimental variable is usually one or several of the sample attribute categories. An important element that is defined in the metadata of each experiment is the " experimental variable".
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