One of the benefits then of having more participants as it gives you statistical power.
但有更多参与者的好处之一是能提供给我们有说服力的统计数据。
2023-39
Second, research on personality and learning also needs to be sensitive enough to detect existing links between two phenomena, that is, studies require sufficient statistical power.
(A previous effort of 40,000 tosses, conducted by two students at the University of California, Berkeley, lacked the statistical power to confirm the theory.) A 50.8% chance is only very slightly different from perfect fairness.
The power or sensitivity of a binary hypothesis test is the probability that the test correctly rejects the null hypothesis (H0) when the alternative hypothesis (H1) is true. It can be equivalently thought of as the probability of accepting the alternative hypothesis (H1) when it is true—that is, the ability of a test to detect an effect, if the effect actually exists. That is,