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Stat Happenings #4: Statistics News You Can Use
From the Office of Statistical Consulting
Fall 2004

1. Expanded Walk-in Consulting Hours
2. Workshops for Fall 2004
3. Statistical Resources for Honors Students
4. Changes in SAS with Version 9.1
5. New Complex Survey Capabilities in SPSS 13.0


1. Expanded Walk-in Consulting Hours
We have new walk-in consulting hours for Fall 2004.  They are now:
Karen Grace Martin:    M-F from 12:30-1:00PM
Francoise Vermeylen:  M-F from 1:30-2:00PM
Simona Despa:            M,T,Th from 1:30-2:00PM

2. Workshops for Fall 2004
There are still openings in the Fall 2004 workshops offered by the Office of Statistical Consulting.  We are offering workshops on Missing Data Analysis, Logistic Regression and Basic Data Analysis.  Please register soon for the Intro to Logistic Regression workshop on Oct. 4 and 5.  CISER is also offering workshops on statistical software, including SPSS, Stata, and SAS.  Please see our web site for more details and to register: http://www.human.cornell.edu/Admin/StatCons/workshop.htm

3. Statistical Resources for Honors Students
We have a number of resources available for honors students, most of whom are analyzing data for the first time.  If you are currently advising an undergraduate research honors student, please encourage them to partake of these resources and to do it early.  We highly recommend our Basic Data Analysis Workshop, which will be offered on October 26 and 28th.   This workshop gives researchers practical basic skills for entering, organizing, and analyzing data.  For more information and to register, go to http://www.human.cornell.edu/Admin/StatCons/workshops/descriptions/basicdata.htm .

4. Changes in SAS with Version 9.1
SAS 9.1 is now available and it offers several noteworthy upgrades
  - new procedures for power and sample size calculations
  - new procedures for contingency tables and logistic regression for complex survey data
  - model diagnostics in proc mixed (use with care as assumptions are more complicated in mixed models)
  - new robustreg procedure for outlier detection and robust regression
  - the full users guide manuals available online
For a more complete description, please see: http://support.sas.com/software/91x/toc.htm .
If you would like to order SAS from Cornell, please go to: http://www.cit.cornell.edu/software/licenses/sas.html .

5. New Complex Survey Capabilities in SPSS 13.0
SPSS has recently released version 13.0.  It should be available on campus in late fall. 

The biggest addition is to the complex sampling module, which previously performed only basic descriptive statistics for complex survey data.  The new version can perform general linear models and logistic regressions, making it a viable alternative for most SPSS users with data from complex surveys. We take this opportunity to remind researchers that incorporating weights is not sufficient for obtaining correct standard errors and p-values for stratified and clustered samples.  Analysts need to use special procedures for complex samples in SAS, Stata, SUDAAN, SPSS, or Wesvar to correctly incorporate the survey design with complex survey data.  For more information about analyzing complex surveys, please see our newletters #11, 12, and 35 at http://www.human.cornell.edu/admin/statcons/statnews/toc.htm .

For a full account of the updates to version 13.0, see http://www.spss.com/press/template_view.cfm?PR_ID=713

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(This newsletter was distributed to faculty and graduate students in the Division of Nutritional Sciences and the College of Human Ecology, and faculty in the College of Agriculture and Life Sciences, by the Office of Statistical Consulting. Please forward it to any interested colleagues and research staff. Anyone not receiving this newsletter who would like to be added to the mailing list for future newsletters should contact statcons@cornell.edu.  Information about the Office of Statistical Consulting can be obtained at World Wide Web address http://www.human.cornell.edu/admin/statcons/.)