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A test of order-constrained hypotheses for circular data with applications to human movement science.

Authors
  • Baayen, Corine
  • Klugkist, Irene
  • Mechsner, Franz
Type
Published Article
Journal
Journal of motor behavior
Publication Date
Jan 01, 2012
Volume
44
Issue
5
Pages
351–363
Identifiers
DOI: 10.1080/00222895.2012.709549
PMID: 22974062
Source
Medline
License
Unknown

Abstract

Researchers studying the movements of the human body often encounter data measured in angles (e.g., angular displacements of joints). The evaluation of these circular data requires special statistical methods. The authors introduce a new test for the analysis of order-constrained hypotheses for circular data. Through this test, researchers can evaluate their expectations regarding the outcome of an experiment directly by representing their ideas in the form of a hypothesis containing inequality constraints. The resulting data analysis is generally more powerful than one using standard null hypothesis testing. Two examples of circular data from human movement science are presented to illustrate the use of the test. Results from a simulation study show that the test performs well.

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