Design and Methodology

Rigorous statistical design and an advanced methodological expertise underlie all NORC studies. At the critical early stages, research projects are defined and scoped by highly skilled NORC staff members in collaboration with our clients.

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National Congregations Study. The National Congregations Study – Wave III, sponsored primarily by the Lilly Endowment and carried out by NORC and Principal Investigator Mark Chaves at Duke University, aims to document the work, programs, and activities of America’s religious congregations.​ More

Outcome Evaluation of the Minnesota Reading Corps PreK Program. The limited number of previous evaluations on volunteer-only tutoring programs has shown variation in their effectiveness to improve children’s literacy proficiency. In 2014, NORC at the University of Chicago completed an evaluation of an AmeriCorps literacy intervention program, the Minnesota Reading Corps, which showed that volunteer AmeriCorps members can produce significantly greater increases in preschool student’s emergent literacy skills over a single school year.  More

Outpatient Payment Policy Under Medicare: Recent Policy Developments from the Rural Perspective. ​This study was designed to examine outpatient payment options for rural hospitals, the advantages and disadvantages of each, and their potential impact on hospital revenue and rural access to health services.  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

The Study of the Food Distribution Program on Indian Reservations. In 2011, the U.S. Department of Agriculture's Food and Nutrition Service (FNS) contracted with the Urban Institute and its partners -- NORC at the University of Chicago and Support Services International -- to conduct a national study of FDPIR and its participants. The last nationally representative study of FDPIR participants and programs was completed in 1990. More

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