Hypothesis Testing: Distinguishing Zero vs Practical Equivalence

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SUMMARY

The discussion clarifies the distinction between failing to reject the null hypothesis (that a parameter is zero) and concluding practical equivalence, which indicates that the parameter lies within an acceptable range near zero. It emphasizes that in hypothesis testing, one does not accept the null hypothesis but rather fails to reject it, highlighting the logical implications of each scenario. This distinction is crucial for accurate interpretation of statistical results in research.

PREREQUISITES
  • Understanding of hypothesis testing principles
  • Familiarity with null and alternative hypotheses
  • Knowledge of practical equivalence concepts
  • Basic statistics terminology
NEXT STEPS
  • Research "Null Hypothesis Significance Testing (NHST)"
  • Learn about "Practical Equivalence in Statistical Analysis"
  • Explore "Bayesian Methods for Hypothesis Testing"
  • Study "Effect Size and its Interpretation"
USEFUL FOR

Statisticians, researchers, and students in fields requiring statistical analysis, particularly those involved in hypothesis testing and interpretation of results.

engineer23
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What is the difference between NOT being able to reject the hypothesis that a particular parameter is zero and being able to conclude that it is within some acceptable distance from zero ("practical equivalence")?

I guess this is more of a logic question, but I'm still having trouble understanding this distinction.
 
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One of them says that the value is not zero, the other says it is. In hypothesis testing you never accept the null hypothesis, you only fail to reject it.

Is this what you were after?
 

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