Understanding Biases in Research
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Questions and Answers

What is bias defined as in the context of results?

  • A systematic error or deviation from the truth (correct)
  • A deviation from the mean
  • A statistical anomaly
  • A random error
  • What can biases lead to in estimating the true intervention effect?

  • Only under-estimation
  • Only over-estimation
  • No effect at all
  • Either under-estimation or over-estimation (correct)
  • How can biases vary?

  • Only in magnitude (correct)
  • In both direction and magnitude
  • They do not vary
  • Only in direction
  • What is a characteristic of bias in results?

    <p>It is systematic</p> Signup and view all the answers

    What is the relationship between bias and the truth?

    <p>Bias is a deviation from the truth</p> Signup and view all the answers

    Study Notes

    Bias in Results

    • Bias is defined as a systematic error or deviation from the truth in results.
    • Biases can lead to two possible outcomes:
      • Under-estimation of the true intervention effect
      • Over-estimation of the true intervention effect
    • The magnitude of biases can vary.

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    Description

    This quiz explores the concept of bias in research, its effects on results, and how it can lead to under or over-estimation of the true intervention effect.

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