Essentials of Statistics (5th Edition)

Published by Pearson
ISBN 10: 0-32192-459-2
ISBN 13: 978-0-32192-459-9

Chapter 1 - Introduction to Statistics - 1-2 Statistical and Critical Thinking - Page 11: 1


Statistical significance is achieved in a study when a result is unlikely to be due to pure chance, whereas practical significance describes a finding's practical or realistic effect. A finding can be statistically significant but have little to no practical significance.

Work Step by Step

For example, a weight loss study that results in an average weight loss of 2 kg may be statistically significant, but the amount of weight lost is not very practical for a weight loss program so there is little practical significance.
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