# Presentation: 803917

## Office of Research andMethodology (ORM)

**Lawrence H. Cox, Ph.D.**
**Associate Director**

**Office of Research and****Methodology (ORM)**

## Office of Research and Methodology (ORM)

**Office of Research and Methodology (ORM)**
- Lawrence H. Cox, PhD
-  Associate Director

**Statistical Research and**
**Survey Design Staff (SRSDS)**
- Paul D. Williams
- Acting Chief

**Interdisciplinary Research**
** ****Centers and Laboratories**
** ****Staff (IRCLS)**
- Kenneth W. Harris
- Acting Chief

## Statistical Research & Survey Design Staff (SRSDS)

**Doug Williams, Acting Chief**

- Survey design and estimation
- Survey methods research
- Statistical computing and GIS

- 18 Mathematical Statisticians
- 	  3 Survey Statisticians
-   4 Fellows (ASA, ASPH, JPSM)

## SRSDS Research/Design Activities

**National survey design**	**	**
- National Health Interview Survey
- National Health Care Surveys (5)
- Joint Canada-U.S. Health Survey
- National Immunization Survey
- National Survey of Family Growth
**Modeling research**
- Small area estimation
- Variance estimation
- Combined survey estimates

## SRSDS Research/Design Activities(cont’d)

**Analysis**
- Bioterrorism/emerging disease
- Combining years of survey data
- Linking data
**Confidentiality/Disclosure Limitation**
**Multiple Imputation**
**Technical Assistance**

## Interdisciplinary Research Centers & Laboratories Staff (IRCLS)

**Research Data Center (RDC)**
**	****	****4**** **Survey Statisticians
**	****	****2**** **Information Technology Specialists
**	****	****1**** **Statistical Assistant
**Cognitive Methods Staff (CMS)**
**	****	****4**** **Survey Statistician Psychologists** **
**	****	****1**** **QDRL Manager
**	****	****2**** **ASPH Fellows
**	****	****1**** **Office Automation Clerk, 1 Secretary

**Kenneth W. Harris, Acting Director**

## RDC Responsibilities

- Provide researchers access to restricted data files in a secure environment
- Provide secure remote data access (SAS)

## Recent RDC Projects

- Provide secure access to person-level data from CDC National Immunization Program (NIP) for the NIP Vaccine Safety Datalink (VSD) Project
- EPA exposure analysis linking air quality indexes to NHANES lung function data

## CMS/QDRL Responsibilities

- Evaluate question testing methods
- Develop qualitative methodology
- Perform cross-cultural research
- Data base of tested questions

## Recent Publications

**Beatty P,** Madans J.  **“The single item self-assessed health measure:  What is it and how does it work?.”****  ***Health Psychology Update 2002*; 11:25-29.
**Cox LH.**** ****“On properties of multi-dimensional statistical tables.”****  ***Journal of Statistical Planning and Inference*. 2003;117:2;251-273.
- Cubbin C,** ****Hadden WC,**** **Winkleby MA.** ****“Neighborhood context and cardiovascular disease risk factors and the contribution of material deprivation.”**** ***Ethnicity and Disease*. 2001 Fall;11(4):687-700.
- Kolenikov S, Smith RL and** ****Cox LH****.  ****“Spatio-Temporal Modeling of PM2.5 Data with Missing Observations.”**** ***Journal of Geophysical Research* 108  (D24), 9004, doi: 10.1029/2002D002914, 2003.

## Recent Publications

**Miller KS**.**  ****“Cognitive Interviewing in Southern Mississippi.”**  *Public Perspective*.**  **March/April 2003;    15-16.
**Nandram B, Choi JW**.  **“A Bayesian analysis of a proportion under nonignorable nonresponse.”**** ***Statistics in Medicine 2002*; May 15; 21(9):1189-1212.
**Schenker N,**** **Parker JD.**  ****“From single-race reporting to multiple-race reporting:  using imputation methods to bridge the transition.”****  ***Statistics in Medicine*. 2003; 22:1571-1587.

## Extramural Research Partners

**Joe Sedransk, **Case Western Reserve  University
**Malay Ghosh, **University of Florida
**Trivellore Raghunathan, **University of Michigan
**George Dunteman, **Research Triangle  Institute
**Steve Thompson, **Pennsylvania State University
**Partha Lahiri, **University of Maryland
**James Kelly, **OptTek Systems Inc.
**	**

## Issues

**Overarching issue:  How to position NCHS survey methodology programs for the next generation of national data needs?**
- New paradigms for survey design and analysis
- Research Data Centers:  The next                  generation
- Jack of all trades and master of some: Capacity of a research program in a small statistical agency

## New Design & Analysis Paradigms:  Beyond Hansen, Hurwitz & Madow

- Many requests of NCHS focus upon needs unmet by design based estimates
- Need to integrate data from disparate sources to answer new/complex/refined biomedical and policy questions
- Incorporate new design and modeling methods yielding more robust surveys
- Exploit computer intensive methods
- Support user base that is expanding and growing in sophistication—anticipate and support future user analytical needs

## Research Data CentersThe Next Generation

- Partnering with other agencies for remote site development
- Expanding remote access capabilities
- Using RDCs as methodological  research laboratories

## Jack of All Trades and Master of Some:  Capacity for Research in a Small Statistical Agency

- Agency size limits number/depth of foci of expertise
- Partnerships needed to fill in the methodological landscape
- Research components shared between statistical agencies
- Training, workforce development and retention