A researcher wishes to avoid making a Type 1 error, so she sets alpha to .01 rather than .05. Which of the following is a disadvantage of this strategy?
A) She may miss a relationship that is really there.
B) She may overestimate her effect size.
C) She may find too many statistically significant relationships.
D) She may underestimate her effect size.

Question

Quizplus · Accepted Answer

Setting alpha to .01 rather than .05 makes the criteria for finding statistically significant results more stringent, which increases the risk of failing to detect a true effect when it exists (a Type II error), thus potentially missing a real relationship.

A Researcher Wishes to Avoid Making a Type 1 Error