What is statistical significance?
a) A criterion used to determine the level of confidence of two groups differing at levels greater than chance
b) A criterion used to determine the level of confidence of the null hypothesis being false
c) The practical value or importance of the effect of an intervention
d) A method for expressing differences between groups in a common metric
Question 2
What is the goal of significance testing?
a) To be able to reject the null hypothesis in all cases
b) To be able to accept the null hypothesis in all cases
c) To provide an objective, agreed upon criterion to decide whether to reject the null hypothesis
d) To provide an objective, agreed upon criterion to effective intervention
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