What is an effect size?
A) A z-score
B) A value to help interpret meaningfulness
C) The difference between two means expressed in standard deviation units
D) All of the above

Question

Quizplus · Accepted Answer

An effect size is a value that helps interpret the meaningfulness of a statistical result. It is typically used in inferential statistics to quantify the difference between two groups or the strength of a relationship between two variables. Effect size can be represented in various ways, including as a z-score or the difference between two means expressed in standard deviation units. Therefore, all of the above options (A, B, and C) are correct.

What Is an Effect Size