Paper 1 · Research Aptitude
The variable manipulated by the researcher in an experiment is called the
AResponse variable
BIndependent variable ✓ Correct
CDependent variable
DExtraneous variable
Correct answer: (B) Independent variable — The variable manipulated by the researcher is the independent variable, so that is the answer.
Explanation
★The variable manipulated by the researcher is the independent variable, so that is the answer.
★The independent variable is the presumed cause that the researcher deliberately changes.
★So the variable that is manipulated in the experiment is the independent variable.
★The response variable is another name for the dependent variable, the measured outcome.
★The dependent variable is the effect, not the manipulated cause.
★An extraneous variable is an unwanted factor, so the manipulated variable is the independent variable.
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