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Sarkari MCQs Government Exam Question Bank
Question no. 88038

Control and experimental cohorts in an experiment receive identical treatment except regarding the:

Select your answer for: Control and experimental cohorts in an experiment receive identical treatment except regarding the:
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Answer: B. independent variable

Explanation

Experimental and control groups must receive identical treatment except for the manipulated independent variable. This experimental control ensures that any observed effects on the dependent variable stem from the intervention. Isolating the independent variable is crucial for establishing clear cause-and-effect conclusions in science. Experimental research design requires rigorous controls to eliminate confounding and extraneous variables. The independent variable is manipulated by the researcher, while the dependent variable is measured. Random assignment to control and experimental cohorts helps distribute individual differences evenly across groups.

Clinical drug trials use placebo-controlled experimental designs to test medication efficacy safely. Educational researchers compare teaching methods by keeping classroom environments identical except for the curriculum. Sound experimental design is the bedrock of credible scientific discovery across all academic disciplines. The dependent variable is the measured outcome resulting from experimental manipulation, not the manipulated factor. Extraneous variables must be controlled and kept identical between groups rather than intentionally varied. Replication variables involve repeating studies across different samples to verify previous experimental findings.

Subject
Psychology
Category
Psychology
Topic
—
Difficulty
medium

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