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Physical Sciences and Mathematics Commons

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Full-Text Articles in Physical Sciences and Mathematics

Example Of The Impact Of Weights And Design Effects On Contingency Tables And Chi-Square Analysis, David A. Walker, Denise Y. Young Nov 2003

Example Of The Impact Of Weights And Design Effects On Contingency Tables And Chi-Square Analysis, David A. Walker, Denise Y. Young

Journal of Modern Applied Statistical Methods

Many national data sets used in educational research are not based on simple random sampling schemes, but instead are constructed using complex sampling designs characterized by multi-stage cluster sampling and over-sampling of some groups. Incorrect results are obtained from statistical analysis if adjustments are not made for the sampling design. This study demonstrates how the use of weights and design effects impact the results of contingency tables and chi-square analysis of data from complex sampling designs.


Tourism Professionals Indicate Research Needs, Robert M. O'Halloran, Donald F. Holecek Jan 1989

Tourism Professionals Indicate Research Needs, Robert M. O'Halloran, Donald F. Holecek

Hospitality Review

County and local tourism officials have a great need for data to help them make their decisions. The authors surveyed professionals to determine data used and needed, the types of decisions made, and where data is obtained. The results provide a profile for information sharing.