INTRODUCTION
RESEARCH AND SCIENTIFIC METHODS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A variable that is changed or controlled in a scientific experiment
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A variable that isn’t changed in a scientific experiment
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Either A or B
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None of the above
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Detailed explanation-1: -An independent variable is a variable that we can change or control in a scientific experiment. It will represent the cause or reason for an outcome. Therefore, independent variables are the variables which the experimenter changes to test their dependent variable.
Detailed explanation-2: -An independent variable is the variable that is changed or controlled in a scientific experiment to test the effects on the dependent variable. A dependent variable is the variable being tested and measured in a scientific experiment.
Detailed explanation-3: -In experiments, researchers manipulate independent variables to test their effects on dependent variables. In a controlled experiment, all variables other than the independent variable are controlled or held constant so they don’t influence the dependent variable.