Kilem Li Gwet, Ph.D.

STATAXIS Consulting

20203 Goshen Road, #191

Gaithersburg, MD 20879

Phone: 240-505-0994

Fax:     301-560-3473

Email: Stataxis Consulting

Sr. Statistical Consultant

Statistical Consulting Services for Researchers, Business Managers
Statistical Thinking, From the Drawing Board of Theory to the Messy World of Hard Facts

 

Data Management

 

 

"A good statistical technique makes bad research data look worse "

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The Problem:

 

Statistical data is generally analyzed professionally using one of the most advanced statistical packages, such as SAS, SPSS, S-PLUS, STATA, etc... However, it is impossible to take raw straight from the field to the statistical for analysis.  Some statistical procedures require for example that the analytical variable be free of missing values.  Some of the following activities must take place:

  • A database containing all your data must be developed.  For databases could be developed in Excel.  Bigger databases may require the use Access, or one of the advanced statistical packages. This supposes that variable names must be given to each factor with data.

  • The next stage will be data cleaning.  This step, aimed at ensuring consistency between variables, and validity of collected data, can be time-consuming.  

  • It may also be necessary to merge two or more databases in order to create a single database ready for analysis. 

  • Several derived variables my need to be calculated so that some statistical techniques can be implemented.

What I can do:

  • I am an excellent SAS programmer, who can use many other statistical packages as well (S-PLUS, SPSS, STATA, etc...).  I can help you with the creation and maintenance of your database.  

  • I can verify the validity of your data, and check your variables for consistency before the beginning of the analysis

What you can do:

 

More about me
Study Design
Statistical Sampling
Statistical Data Analysis
Inter-Rater Reliability
Design of Experiments
Database Management
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STATAXIS CONSULTING

20203 Goshen Road #191, MD 20879 USA

Phone: 240-505-0994, Fax: 301-560-3473, email: Stataxis Consulting

 
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