Paper 1 · Research Aptitude
Experimental studies are based on
AThe manipulation of variables ✓ Correct
BFixed conceptual parameters only
CMere replication of past research
DA survey of existing literature
Correct answer: (A) The manipulation of variables — Experimental studies are based on the manipulation of variables, so that is the answer.
Explanation
★Experimental studies are based on the manipulation of variables, so that is the answer.
★In an experiment the researcher deliberately changes the independent variable.
★So the experiment is built around this manipulation to observe its effect.
★It is not based only on fixed conceptual parameters, which are abstract ideas.
★It is not mere replication of past research, though replication may follow.
★A survey of literature is preparation, not the basis, so experimental studies rest on the manipulation of variables.
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