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Related Concept Videos

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Scientists always try their best to record measurements with the utmost accuracy and precision. However, sometimes errors do occur. These errors can be random or systematic. Random errors are observed due to the inconsistency or fluctuation in the measurement process, or variations in the quantity itself that is being measured. Such errors fluctuate from being greater than or less than the true value in repeated measurements. Consider a scientist measuring the length of an earthworm using a...
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Scientists typically make repeated measurements of a quantity to ensure the quality of their findings and to evaluate both the precision and the accuracy of their results. Measurements are said to be precise if they yield very similar results when repeated in the same manner. A measurement is considered accurate if it yields a result that is very close to the true or the accepted value. Precise values agree with each other; accurate values agree with a true value. 
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When we take repeated measurements on the same or replicated samples, we will observe inconsistencies in the magnitude. These inconsistencies are called errors. To categorize and characterize these results and their errors, the researcher can use statistical analysis to determine the quality of the measurements and/or suitability of the methods.
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The Scientific Method01:32

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The scientific method is a detailed, empirical problem-solving process used by biologists and other scientists. This iterative approach involves formulating a question based on observation, developing a testable potential explanation for the observation (called a hypothesis), making and testing predictions based on the hypothesis, and using the findings to create new hypotheses and predictions.
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Chemistry is an empirical science. Scientists often pose questions to understand the chemistry in everyday life and seek answers to these questions. To achieve this, scientists follow a definitive series of steps that together make up the Scientific Method. This approach involves making observations, asking questions, building a hypothesis, conducting experiments, analyzing results, and forming a conclusion. 
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Updated: Dec 12, 2025

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Publisher Correction: Low replicability can support robust and efficient science.

Stephan Lewandowsky1,2, Klaus Oberauer3

  • 1School of Psychological Science, University of Bristol, 12A, Priory Road, Bristol, BS8 1TU, UK. stephan.lewandowsky@bristol.ac.uk.

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|August 13, 2020
PubMed
Summary
This summary is machine-generated.

This study has a published amendment. Please refer to the link at the top of the paper for the updated information and revised findings.

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Area of Science:

  • Scientific communication
  • Research integrity

Background:

  • Amendments are crucial for correcting errors or providing updates in scientific literature.
  • Ensuring the accuracy of published research is paramount for scientific progress.

Purpose of the Study:

  • To notify readers of a published amendment to the original paper.
  • To provide access to the corrected or updated version of the research.

Main Methods:

  • An amendment has been officially published.
  • A direct link to the amendment is provided at the top of the paper.

Main Results:

  • The paper has been officially amended.
  • Readers can access the updated content through the provided link.

Conclusions:

  • Readers should consult the amendment for the most current and accurate information.
  • The publication process includes mechanisms for post-publication corrections to maintain research integrity.