What is the effect size?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 9SGR
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What is the effect size?

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Effect size measures the strength of the relationship between two variables on a numeric scale. For example if we have two groups of students and we are working on their weights. The difference between average height of men and average height of women is known as effect size. The greater the difference between two groups greater will be the effect size.

when effect size is 0.2, it is considered to be small, if effect size is 0.5then  it is considered to be medium, if effect size is  0.8 then it is considered to be large

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