Let's further define mutation as a heritable change in the genetic material. This point becomes important in multicellular organisms where we must distinguish between changes in gametes (germline mutations) and changes in body cells (somatic mutations).
Statistical significance relates to the question of whether or not the results of a statistical test meets an accepted criterion level. In psychology this level is typically the value of p < .05. The criteria of p < .05 was chosen to minimize the possibility of a Type I error, finding a significant difference when one does not exist. It does not protect us from Type II error, failure to find a difference when the difference does exist.
Definition of LEVEL OF SIGNIFICANCE. : the probability of rejecting the null hypothesis in a statistical test when it is true âcalled also significance level. ADVERTISEMENT. Next Word in the Dictionary: level premium Previous Word in the Dictionary: level off All Words Near: level of significance.