Statistical Significance

nounverified·updated May 18, 2026

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When the probability of obtaining a statistic of a given size due strictly to random sampling error, or chance, is less than the selected alpha level [or the probability of a type I error]; also represents a rejection of the null hypothesis.

Framework senses

2 senses across 2 frameworks

Statistical Significance and Effect Size1 senseview framework →

§1: When the probability of obtaining a statistic of a given size due strictly to random sampling error, or chance, is less than the selected alpha level [or the probability of a type I error]; also represents a rejection of the null hypothesis.

Relationships Between Variables1 senseview framework →

§1: refers to whether a relationship between two or more variables exists beyond a probability expected by chance