By setting a criterion probability for rejecting the null hypothesis, one can set the rate at which one will commit Type I errors. This criterion that is the probability of making a Type I error is known as the _____.
A) alpha level
B) beta level
C) effect size
D) F ratio

Question

Quizplus · Accepted Answer

The alpha level is the criterion probability set by the researcher for rejecting the null hypothesis, and it represents the probability of committing a Type I error.

By Setting a Criterion Probability for Rejecting the Null Hypothesis