Stephanie is designing an experiment to investigate the effect of listening to calming music on positive emotions. Even though the usual alpha level is 0.05, Stephanie feels that she wants to adopt more stringent criteria for her study, so she chooses an alpha level of 0.01. This strategy reduces the probability of:
A) Type I error
B) Type II error
C) Standard error
D) p-value error

Question

Quizplus · Accepted Answer

By choosing a more stringent alpha level of 0.01, Stephanie is reducing the probability of Type I error, which is the probability of falsely rejecting the null hypothesis when it is actually true. This means she is being more cautious and ensuring that any significant findings are less likely to be due to chance.

Stephanie Is Designing an Experiment to Investigate the Effect of Listening