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What is the best way to make a scientific observation more reliable?

Answer and explanation

Correct answer: Repeat observations and record them promptly

Repeating an observation reduces the effect of chance errors or unusual results. Recording it promptly also prevents details from being forgotten or altered, so option D is the most reliable method. Observing only once gives limited evidence, and recording preferred or expected results introduces bias. Exam tip: For reliability, look for ideas such as repetition and prompt recording.

Related tags

Scientific ObservationReliabilityRepeated ObservationsData RecordingExperimental BiasRecording And Analysing DataExploration: Entering The World Of Secondary ScienceExploration Entering The World Of Secondary Science

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