Motion Sickness Incidence: Distribution of Time to First Emesis and Comparison of Some Complex Motion Conditions.

Abstract

A statistical mixture model is used to fit time-to-emesis data. The Weibull probability distribution is shown to provide a good fit for those subjects who either become sick or withdraw from the experiment within two hours. The second part of the mixture accounts for those subjects who neither quit nor vomit within two hours. The lognormal probability model is shown to give a poorer fit to the data and figures showing the relative fits of the estimated Weibull and lognormal distributions are provided. A nonparametric test is used to compare the five motion conditions of the Correlation Study. That test shows that there are significance differences in severity among the conditions. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1983
Accession Number
ADA131930

Entities

People

  • Kevin C. Burns

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Data Science
  • Data Sets
  • Distribution Functions
  • Frequency
  • Generators
  • Goodness Of Fit Tests
  • Inclusions
  • Information Science
  • Mathematics
  • Motion Sickness
  • Normal Distribution
  • Operations Research
  • Probability
  • Probability Density Functions
  • Probability Distributions
  • Statistical Analysis
  • Statistics

Fields of Study

  • Mathematics

Readers

  • Brain and Cognitive Science; Experimental Psychology; Cognitive Neuroscience
  • Statistical inference.