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What should be done when an unexpected result is obtained?

Answer and explanation

Correct answer: Record and investigate it

The direct answer is D: record the unexpected result and investigate it. Science does not allow a result to be removed merely because it disagrees with an expectation. Step by step: write the result exactly as observed; check the procedure, measurements, units, equipment, and possible recording errors; repeat the investigation when appropriate; compare the new evidence and report both expected and unexpected findings. Option D is correct because an unexpected result may reveal a new effect, a hidden variable, or an experimental error. Option A is wrong because deleting evidence creates a biased record. Option B is wrong because changing the result is dishonest and destroys its meaning. Option C is wrong because hiding it prevents others from checking the conclusion. A helpful cue is: surprising evidence is a reason to check, not a reason to erase.

Related tags

Unexpected ResultEvidenceData RecordingScientific Questions And ObservationsExploration: Entering The World Of Secondary ScienceExploration Entering The World Of Secondary ScienceScienceClass 9 Mcq

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