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Measures of central tendency in rehabilitation research - What do they mean ?
GONZALES VA; OTTENBACHER KJ
AM J PHYS MED REHABIL , 2001, vol. 80, n° 2, p. 141-146 Doc n°: 99361 Localisation : Documentation IRR Descripteurs : HD - ORGANISATION DE LA REEDUCATION - READAPTATION Measures of central tendency including the mean, median, and mode are commonly reported in rehabilitation research. It is believed that the relationship among the mean, median, and mode changes in a specific way when the distribution being analyzed is skewed. A number of widely used textbooks were reviewed to determine how the relationship among the mean, median, and mode is presented in the health sciences and rehabilitation literature. We report a potential misinterpretation of the relationship between measures of central tendency that was identified in several research and statistical textbooks on the subject of rehabilitation. The misinterpretation involves measures of central tendency derived from skewed unimodal sample distributions. The reviewed textbooks state or imply that in asymmetrical distributions, the median is always located between the mode and mean. Langue : ANGLAIS Identifiant basis : 2001215297 |
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