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Median Test

Richardson, John T. E. (2018). Median Test. In: Frey, Bruce B. ed. The SAGE Encyclopedia of Educational Research, Measurement, and Evaluation. SAGE Publications, pp. 1043–1045.

DOI (Digital Object Identifier) Link: https://doi.org/10.4135/9781506326139.n424
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Abstract

A very simple design in quantitative research involves the random allocation of a sample of N individuals to two different groups. The groups are exposed to different treatments, and the research question is whether there is any difference between the two groups on some criterion variable. Classically, this question is addressed using Student’s t test for independent groups or the equivalent one-way between-subjects analysis of variance. However, this procedure assumes that the criterion variable in question (a) is measured on an interval or ratio scale, (b) is normally distributed, and (c) has the same variance in both of the groups. The median test was devised for use in situations in which one or more of these assumptions is not met.

Item Type: Book Section
Copyright Holders: 2018 SAGE Publications
ISBN: 1-5063-2615-3, 978-1-5063-2615-3
Academic Unit/School: Learning and Teaching Innovation (LTI) > Institute of Educational Technology (IET)
Learning and Teaching Innovation (LTI)
Item ID: 53648
Depositing User: John T. E. Richardson
Date Deposited: 26 Feb 2018 09:35
Last Modified: 07 Dec 2018 11:02
URI: http://oro.open.ac.uk/id/eprint/53648
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