Statistical Design and Analysis

​​NORC statisticians and methodologists have pioneered innovations in all aspects of survey research, from understanding cognitive processes underlying respondents’ reaction to surveys and survey instrumentation to rigorous, efficient methods for conducting surveys and advanced techniques for analysis and interpretation of survey data. NORC boasts several world-renowned statisticians and methodologists, including five Fellows of the American Statistical Association.

NORC’s work in the area of respondent cognitive processes culminated in a number of key publications in the field of cognitive research, and continues to be a major strength in our organization's repertoire. NORC’s Statistics and Methodology Department makes substantial contributions to virtually all NORC projects and builds the methodological infrastructure that underlies all major NORC studies. This includes establishing statistical standards for use throughout the organization to ensure consistently high quality in the areas of sampling design and execution, development and testing of questionnaires and other instruments, statistical process control, design and development of estimation systems, statistical computing, disclosure and confidentiality analysis, record linkage, unduplication, and geocoding. In addition to these support functions, NORC statisticians and methodologists develop and execute projects with particular statistical or methodological complexities and assist social scientists from all parts of the organization in conducting research-related data analysis.

Specific areas of expertise include:

Representative Projects

2010 National Sample Frame. U.S. households are the primary unit for sample selection for many studies, but sample frames for households can be difficult and expensive to create. In order to provide a sample frame for use by many surveys, NORC has constructed the 2010 National Sample Frame, based on the 2010 Census information. This sample is representative of over 99% of U.S. households and provides a listing of almost 3 million households, including over 80,000 rural households. More

Implementation of an M&E System for the African Cashew Initiative (ACI). The African Cashew Initative , funded by the Bill & Melinda Gates Foundation, aims to strengthen global competitiveness of cashew production and processing in five pilot countries in Africa: Mozambique, Ghana, Burkina Faso, Cote d’Ivoire and Benin. More

MCC Impact Evaluation Services in Benin. NORC is designing, coordinating, and implementing rigorous impact evaluations of the Access to Land and Access to Credit components of MCC's programs in Benin. The impact evaluations will measure the contribution of these interventions to changing household income in the project intervention areas as well as examine the total value of additional investment on targeted rural land parcels. 
 More

National Immunization Survey. The NIS, administered by NORC since 2005, monitors childhood immunization coverage for the Centers for Disease Control and Prevention (CDC). This household survey screens more than 6 million sampled telephone lines yearly. The NIS Provider Survey requests permission to contact eligible children’s medical providers, and sends these providers an Immunization History Questionnaire. Household and provider data are combined to produce timely estimates of children’s vaccination coverage rate for national, state and local areas. A companion survey, the NIS-Teen, monitors vaccination coverage among teenagers aged 13-17 years. More

State-specific Design Parameters for Designing Better Evaluation Studies. This IES-funded project seeks to use State Longitudinal Data Systems (SLDS) to estimate variance components and intraclass correlations for use in multi-level study designs in education.  Having plausible values of intraclass correlations is essential to planning how many schools and students are needed for an evaluation design.  This project is a continuation of efforts by Hedges and Hedberg to provide guidance on these parameters to the research community. Whereas their previous work used national probability samples to estimate these parameters, the current project uses state data. More

See all Statistical Design and Analysis projects

Headlines

News The Republic: "Predicting number of very old is confounding" with research from Biodemography of Exceptional Longevity in the United States More
Posted: 3.15.2012 4:19PM
News The Wall Street Journal: NORC's Natalia Gavrilova and Leonid Gavrilov ask if mortality can actually increase after 80 More
Posted: 3.5.2012 4:28PM
Event Teen Dating Violence Intervention & Prevention, , Wednesday, February 29, 2012 More
Posted: 2.13.2012 1:38PM
News UPI.com: Pondering mortality rates after 80, with research from NORC Expert Leonid Gavrilov More
Posted: 2.7.2012 2:03PM

Contacts

Kennon R. Copeland

(301) 634-9432

Daniel Kasprzyk

(301) 634-9396

Jeffrey Hackett

(312) 759-4266