Professional References
Statistical Analysis Expertise
Samuel R. Friedman  supervisor at NDRI for a decade. I worked with Sam and his colleagues on several large grants to advise, develop and apply statistical data analysis techniques to the grant writing process. Specific data analysis techniques applied include: OLS regression, logistic regression, multinomial logistic regression, ordinal logistic regression, factor analysis, cluster analysis, hierarchical linear models, power analysis, box plots, strip plots, dot plots, mosaic plots, scatterplots. Together we published many peerreviewed articles.
Leslie Prichep  was my supervisor at BrainScope. I worked with Leslie to develop data analysis techniques to support here research. Careful application of logistic regression, discriminant analysis, genetic algorithms, box plots and classification trees helped distinguish people with various conditions on the basis of electroencephalographic data.
Anjali Sharma  At SUNY Downstate, some of my most involved work has been with Anjali analyzing data about epilepsy. In addition to logistic regression we used OLS regression and hierarchical linear models to support and advance Anjali's research.
Agnes Perenyi  Collegue at SUNY downstate who I worked with on research data about neonatology. I helped Agnes implement a combination of fundamental statistical analysis techniques as well as ANOVA and chisquare."
Featured Posts

This is a talk I've given at Northeast SAS Users Group (NESUG) and at SAS Global Forum (SGF)

Suppose that you are running a regression and one of your independent variables is the hour of the day (or day...

There are many books that teach you to use SAS or that teach you to use R. There is at least one book that...

What is the mean? The average, or mean, or, more formally, the arithmetic mean, is one of the simplest...

The ttest is a statistical test of whether two sample means (averages) or proportions are equal. It was...

This is a talk that I will give at NESUG in the fall.

So, you've got to read a statistics book. Maybe you're taking a statistics course, or maybe you are working on...

When we have quantitative data, one thing we often want to know is where the center is, and, for that, we can...

Often, when reading a statistics book, you will see some variation on the phrase "independent data". Many...

Sensitivity and specificity are measures of the effectiveness of a diagnostic test. Most often they are used...

[latexpage] In regression models of various kinds (e.g.

In regression and ANOVA, an interaction occurs when the effect of one independent variable on the...