# Social Science Statistics Blog

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- App Stats: Alan Zaslavsky on "The Consumer Assessments of Healthcare Providers and Systems (CAHPS) Survey for Medicare"
- statistics meets itunes

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« November 2011 | Main | February 2012 »

30 January 2012

### App Stats: Quackenbush on "Moving Beyond the Mean: The Role of Variation in Determining Phenotype"

We hope you can join us this Wednesday, February 1, 2012 for the Applied Statistics Workshop. John Quackenbush, Professor of Biostatistics and Computational Biology and Director of the Center for Cancer Computational Biology at the Dana-Farber Cancer Institute, will give a presentation entitled "Moving Beyond the Mean: The Role of Variation in Determining Phenotype". A light lunch will be served at 12 pm and the talk will begin at 12.15.

"Moving Beyond the Mean: The Role of Variation in Determining Phenotype"
John Quackenbush
Dana-Farber Cancer Institute and Harvard School of Public Health
CGIS K354 (1737 Cambridge St.)
Wednesday, February 1st, 2012 12.00 pm

> Two trends are driving innovation and discovery in biological sciences: technologies that allow holistic surveys of genes, proteins, and metabolites and a realization that biological processes are driven by complex networks of interacting biological molecules. However, there is a gap between the gene lists emerging from genome sequencing projects and the network diagrams that are essential if we are to understand the link between genotype and phenotype. 'Omic technologies were once heralded as providing a window into those networks, but so far their success has been limited, in large part because the high-dimensional they produce cannot be fully constrained by the limited number of measurements and in part because the data themselves represent only a small part of the complete story. To circumvent these limitations, we have developed methods that combine 'omic data with other sources of information in an effort to leverage, more completely, the compendium of information that we have been able to amass. Here we will present a number of approaches we have developed, with an emphasis on the how those methods have provided into the role that particular cellular pathways play in driving differentiation, and the role that variation in gene expression patterns influences the development of disease states. In particular, we will challenge the basic analytical that have been used in biomedical research and argue that one should move beyond a simple comparison of the means relative to variance (the t-test) but instead also consider how variance itself changes between phenotypes. Looking forward, we will examine more abstract state-space models that may have potential to lead us to a more general predictive, theoretical biology.

Posted by Konstantin Kashin at 2:26 AM

22 January 2012

### App Stats: Alan Zaslavsky on "The Consumer Assessments of Healthcare Providers and Systems (CAHPS) Survey for Medicare"

We hope you can join us this Wednesday, January 25 for the first Applied Statistics Workshop of 2012! Alan Zaslavsky, a professor of health care policy in the Department of Health Care Policy at Harvard Medical School, will give a presentation entitled "The Consumer Assessments of Healthcare Providers and Systems (CAHPS) Survey for Medicare: A Review and New Findings from a Mode Experiment". A light lunch will be served at 12 pm and the talk will begin at 12.15.

"The Consumer Assessments of Healthcare Providers and Systems (CAHPS) Survey for Medicare: A Review and New Findings from a Mode Experiment"
Alan Zaslavsky
Department of Health Care Policy, Harvard Medical School
CGIS K354 (1737 Cambridge St.)
Wednesday, January 25th, 2012 12.00 pm

Abstract:

> We assess health care quality and access in the Medicare system to inform consumer choice, foster quality improvement, monitor health plan quality, and reward high-performing plans. The CAHPS survey has since 1997 been one of the main tools for this assessment. In this talk, I will review some of the more interesting analyses of system quality made possible by using the CAHPS survey and some of the challenging issues in system monitoring overcoming years. I will then describe our analyses of an experiment on the effects of survey mode on CAHPS responses, using a principal stratification framework.

Posted by Konstantin Kashin at 5:43 PM

17 January 2012

### statistics meets itunes

The lectures for the (arguably) best statistics class I've ever taken are now available via itunes. To whet your appetite, this happened in lecture a few years ago.

Posted by Richard Nielsen at 7:14 PM