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The P Value and Statistical Significance: Misunderstandings, Explanations, Challenges, and Alternatives - PMC

ncbi.nlm.nih.gov · 4,129 words · saved by 1 readers

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Abstract The calculation of a P value in research and especially the use of a threshold to declare the statistical significance of the P value have both been challenged in recent years. There are at least two important reasons for this challenge: research data contain much more meaning than is summarized in a P value and its statistical significance, and these two concepts are frequently misunderstood and consequently inappropriately interpreted. This article considers why 5% may be set as a reasonable cut-off for statistical significance, explains the correct interpretation of P < 0.05 and…

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