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

If you often have regression problems in which you have a great many independent variables, partial least...

[latexpage] The chisquare test can refer to several different types of tests. Here I will discuss the...

Signal versus noise Description and inference That is statistics

In any form of regression model, we often think of the effects as additive. That is, we suppose that...

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

In this article I showed some problems with the average or arithmetic mean and in this one I discussed...

People often transform their variables. There are two sorts of transformation: One is to simply multiply all...

Question: Is the method of determining outliers by flagging data that are more than 3 standard deviations away...

I've designed a great experiment And collected all my data. I've no idea what it all means I'll get to that...

This is a talk that I gave at NDRI. I also gave a version of this talk at Yale and at BrainScope

Two terms that are frequently confused are moderation and mediation: Definitions...

There are many reasons to write a grant, and many places to apply for one  from small grants for a few...