The probability of rejecting the null hypothesis in a statistical test when it is true.
7 people found this helpful. The researchers were curious about the level of significance in their studies and research, this meant they attempted to find the chance that their statistical test with go against their data and hypothesis-even if the hypothesis was actually true. 11 The significance level, also denoted as alpha or α, is the probability of rejecting the null hypothesis when it is true. For example, a significance level of 0.05 indicates a 5% risk of concluding that a difference exists when there is no actual difference. Definition of LEVEL OF SIGNIFICANCE. : the probability of rejecting the null hypothesis in a statistical test when it is true —called also significance level. ADVERTISEMENT. Next Word in the Dictionary: level premium Previous Word in the Dictionary: level off All Words Near: level of significance. The researchers were curious about the level of significance in their studies and research, this meant they attempted to find the chance that their statistical test with go against their data and hypothesis-even if the hypothesis was actually true. 11 people found this helpful. Hypothesis testing is a widespread scientific process used across statistical and social science disciplines. In the study of statistics, a statistically significant result (or one with statistical significance) in a hypothesis test is achieved when the p-value is less than the defined significance level. A result that is not likely to occur randomly, but rather is likely to be attributable to a specific cause. Statistical significance can be strong or weak, and is important to research in many math-and science-related fields, including medicine, sociology, psychology and biology.
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level of significance definition