I offer expert level professional consulting in the standard methods such as:
- Regression Analysis
- logistic regression,
- survival analysis
- cluster analysis
- factor analysis
- principal component analysis
- multi-dimensional scaling.
I will be giving a 4 hour course at SESUG in Savannah this fall. The course is titled: Lies, damn lies...
BMI, or body mass index, is calculated by dividing by weight by height squared. Specifically, it's weight in...
In regression and ANOVA, an interaction occurs when the effect of one independent variable on the...
[latexpage] The chi-square test can refer to several different types of tests. Here I will discuss the...
When you have two numeric variables and are interested in the relationship between them, the basic statistical...
[latexpage] Sometimes we want to compare the spread of a distribution to its mean. This can be useful when we...
These are the slides from 4 hour course I gave at SESUG.One problem with academic research publications is known as the "file-drawer" problem. If you do research on a...These are the slides for a talk at New York Area SAS Users' Group on June 2, 2011.Question: How do I calculate a t-test for proportion in a small sample of 8 to do hypothesis testing? My...In a previous article I looked at how to go wrong with the mean. Today, I will look at a set of alternative...This is a paper for NESUG (NorthEast SAS Users' Group) 2010, which you can see as a PDF articleNESUG2010.