Paper 1 · Research Aptitude
UGC NET December 2023 (12.12.2023) Shift-I
The systematic elimination of extraneous variables, other than those you are interested in, can be done in which of the following types of research?
AQualitative research
BLongitudinal research
CExperimental research ✓ Correct
DCorrelational research
Correct answer: (C) Experimental research — The systematic elimination of extraneous variables is done in experimental research, so that is the answer.
Explanation
★The systematic elimination of extraneous variables is done in experimental research, so that is the answer.
★Experimental research studies variables under controlled conditions.
★The researcher deliberately controls or removes unwanted variables.
★This isolates the effect of the variable of interest.
★Such control is a defining feature of experiments.
★Qualitative, longitudinal and correlational research do not control variables in this strict way.
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