Which statement best describes statistical significance?

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Multiple Choice

Which statement best describes statistical significance?

Statistical significance focuses on whether the observed effect is unlikely to occur by chance under the assumption that there is no real effect. When results are statistically significant, it means the observed difference or association is unlikely to be due to random variation alone, given the null hypothesis and the chosen significance level. It does not prove causation, because other explanations like confounding variables could produce similar results. It also doesn’t guarantee that the result will be replicated in another study, and it doesn’t by itself imply practical importance.

Statistical significance focuses on whether the observed effect is unlikely to occur by chance under the assumption that there is no real effect. When results are statistically significant, it means the observed difference or association is unlikely to be due to random variation alone, given the null hypothesis and the chosen significance level. It does not prove causation, because other explanations like confounding variables could produce similar results. It also doesn’t guarantee that the result will be replicated in another study, and it doesn’t by itself imply practical importance.

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