Practical significance of the difference in means

By H. S. Steyn. 2000

185 citations recorded by the source corpus.

It is shown how the standardised difference (the effect size) between two population means can be used to establish significance when the populations are observed in totality. When dealing with two samples methods are given to determine the practical importance of a statistically significant difference. The usual effect size formula is adapted to deal with cases where populations have different standard deviations. Opsomming Dit word aangetoon hoe die gestandaardiseerde verskil (die effekgrootte) tussen twee populasiegemiddeldes gebruik kan word om beduidenheid t.o.v. volledig waargenome populasies te bepaal. In die geval van twee steekproewe word metodes gegee om die praktiese belangrikheid van 'n statistiese beduidende verskil vas te stel. Die gewone effekgrootte formule word aangepas ten einde gevalle waar populasies verskillende standaardafwykings het te hanteer.

Subfields: Statistics and Probability

View Paper: https://www.semanticscholar.org/paper/37f4330cd88595f76706ebff3e0a63491b105e2c

How researchers see this paper

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In Statistics and Probability

1. S. Rothmann
2. J. Buitendach
3. Hans De Witte
4. Marius W. Stander

Citations in the corpus

• Practically significant relationships between two variables (2002, background): “Here, as in the case where two population means are compared (cf. Steyn, 2000), an effect size, as a measure of practical significance, can be a useful aid.”