5. Environmental Studies

  1. Gerald van Belle

Published Online: 26 SEP 2008

DOI: 10.1002/9780470377963.ch5

Statistical Rules of Thumb, Second Edition

Statistical Rules of Thumb, Second Edition

How to Cite

van Belle, G. (2008) Environmental Studies, in Statistical Rules of Thumb, Second Edition, John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470377963.ch5

Author Information

  1. University of Washington, Department of Biostatistics and Department of Environmental and Occupational Health Sciences, Seattle, WA

Publication History

  1. Published Online: 26 SEP 2008
  2. Published Print: 18 AUG 2008

ISBN Information

Print ISBN: 9780470144480

Online ISBN: 9780470377963

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Keywords:

  • sampling;
  • lognormal;
  • skewness;
  • risk;
  • pseudoreplication

Summary

This chapter contains sections titled:

  • Begin with the Lognormal Distribution in Environmental Studies

  • Differences are More Symmetrical

  • Know the Sample Space for Statements of Risk

  • Beware of Pseudoreplication

  • Think Beyond Simple Random Sampling

  • Consider the Size of the Population Affected by Small Effects

  • Statistical Models of Small Effects are Very Sensitive to Assumptions

  • Distinguish Between Variability and Uncertainty

  • Description of the Database is as Important as Its Data

  • Always Assess the Statistical Basis for an Environmental Standard

  • How a Standard is Measured Affects Policy, Enforcement, and Response

  • Parametric Analyses Make Maximum Use of the Data

  • Distinguish Between Confidence, Prediction, and Tolerance Intervals

  • Statistics Plays a Key Role in Risk Assessment, Less in Risk Management

  • Exposure Assessment is the Weak Link in Assessing Health Effects of Pollutants

  • Assess the Errors in Calibration Due to Inverse Regression