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64) An analysis of the U.S. pilot population from 1983-2005: evaluating the effects of regulatory change
Author
Publisher
Federal Aviation Administration, Office of Aerospace Medicine
Pub. Date
2009.
Language
English
Description
The size of the U.S. civil aviator community has been of interest to researchers, policy makers, and special interest groups. A strict definition for membership in the U.S. pilot population was used that was based on Scientific Information System principles. This approach provides methods for scientists to describe, quantify, and predict changes in this population over the 23-year study period. The Bioinformatics Research Team at the Civil Aerospace...
77) Missing data
Author
Series
Quantitative applications in the social sciences volume no. 07-136
Publisher
Sage Publications
Pub. Date
[2002]
Language
English
Description
"Sooner or later anyone who does statistical analysis runs into problems with missing data in which information for some variables is missing for some cases. Why is this a problem? Because most statistical methods presume that every case has information on all the variables to be included in the analysis. Using numerous examples and practical tips, this book offers a nontechnical explanation of the standard methods for missing data (such as listwise...
