GCSE Maths

AQA Science: Glossary - Reproducible

A measurement is reproducible if the investigation is repeated by another person, or by using different equipment or techniques, and the same results are obtained.

N.B. "the same" results implies identical, but in reality "the same" means that random error will still be present in the results.

e.g. Raj, Reg and Robin use stopwatches to record the time taken for a pendulum to swing back and forth. Their results are reasonably similar, which means they can feel confident that they are reproducible. By averaging their results, the mean will probably be quite accurate.

Raj: 1.27 s
Reg: 1.31 s
Robin: 1.33 s

  1. Explain why their results are reproducible, even though they are not the same.
  2. Why aren't they identical?

Accuracy
Calibration
Data
Errors*
Evidence
Fair test
Hypothesis
Interval
Precision
Prediction
Range
Repeatable
Reproducible
Resolution
Sketch Graph
True Value
Uncertainty
Validity
Valid Conclusion
Variables*
* These terms have a number of related items.

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