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- Title
The Impact of an Extreme Observation in a Paired Samples Design.
- Authors
Derrick, Ben; Broad, Antonia; Toher, Deirdre; White, Paul
- Abstract
The effect of systematically altering the value of a single observation within a paired differences design is considered. A paradox is observed for the paired samples f-test, where increasing the value of an observation in the direction of the true mean difference results in a higher p-value. Using simulation, deviations from robustness of the paired samples t-test is demonstrated, and is contrasted with Yuen's paired samples t-test and the Wilcoxon signed rank sum test.
- Subjects
F-test (Mathematical statistics); ROBUST control; STANDARD deviations; SIMULATION methods &; models; WILCOXON signed-rank test
- Publication
Advances in Methodology & Statistics / Metodološki Zvezki, 2017, Vol 14, Issue 2, p1
- ISSN
1854-0023
- Publication type
Article
- DOI
10.51936/ktch6909