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Qiduan Liu, PhD

Making Change Happen

Major service providers rely on program evaluation to continually adapt.  Programs consistently face changes in the community, culture, and economic climate and must recognize these changes in order to provide the maximum support to their client base.

Dr. Qiduan Liu helps the South Carolina Department of Social Services (DSS) develop evaluation and research strategies. Working alongside a team of other researchers, Dr. Qiduan utilizes a vast range of administrative data, including employment numbers, so that these programs can see patterns and enhance the services they provide.

Dr. Qiduan has been tracing the effects of the recession on DSS’s work-support programs in helping South Carolina’s welfare recipients find and retain jobs. She applied a statistical model that tracks the employment trajectories of people receiving services as they struggle to find stable employment in a harsh economy.  The data directly inform South Carolina’s policies, so that people throughout the state can receive the support they need.

Research Background

Qiduan Liu earned a Doctorate in Educational Research and Measurement. She conducts data analyses for the planning and evaluation of social service and health programs, using a combination ofadministrative and survey data.  She has over twenty years’ experience using SAS to extract, link, and aggregate information, and she has used statistical analysis methods for different research designs including case-control studies and cohort studies.

Research Projects(recent)

  • Liu, Qiduan & Flynn, Cynthia (2011-2013). Assessing the Impact of South Carolina Family Independence Program on Three Cohorts of TANF Entrants.This study is one of the projects supported by the Strengthening South Carolina’s Capacity in Using TANF and Related Administrative DataCooperative Agreement Award No. 90PD0267, DHHS ACF OPRE.

Selected Publications

  • David Ribar, Marilyn Edelhoch, Qiduan Liu.  Food Stamp Participation among Adult-Only Households. Southern Economy Journal.Vol.77, No. 2, 2010.
  • Barbara Medley, Marilyn Edelhoch, Qiduan Liu, & Linda Martin.  “Success after Welfare: What Makes the Difference?  An Ethnographic Study of Welfare Leavers in South Carolina.”Journal of Poverty.  Vol. 9, No. 1, January 2005.
  • Marilyn Edelhoch, Qiduan Liu, & Linda Martin.  “Who is Coming on Welfare Now, and Why?”  Policy and Practice. Vol. 61, No. 3, September 2003.
  • Marilyn Edelhoch, Qiduan Liu, & Linda Martin.  “Unsung Heroes: Relative Caretakers in Child-Only Cases.”  Policy and Practice. Vol. 60, No 1, March 2002.
  • Marilyn Edelhoch, Qiduan Liu, & Linda Martin.“The Post-welfare Progress of Sanctioned Clients in South Carolina.” The Journal of Applied Social Sciences.Vol. 24, No. 2, Spring/Summer 2000.
  • Garret Mandeville & Qiduan Liu.“Effect of Teacher Certification and Task Level on Mathematics Achievement.” Teaching and Teacher Education.Vol.13, No. 4, 1997.

Selected Presentations

  • Assessing the Impact of South Carolina Family Independence Program on Three Cohorts of  TANF Entrants, presented at the Annual Meeting of the National Association for Welfare Research and Statistics, Baltimore, Maryland, 2012.
  • Food Stamps, Cash Assistance and Employment in South Carolina, presented at the Summer Research Workshop, “Current Research on the Low Income Population,” sponsored by the Institute for Research in Poverty, Wisconsin, Wisconsin, June, 2004.
  • Who is Coming On Welfare and Why: SCDSS’ Survey of Newly Approved Cases, presented at the National Welfare Reform Evaluation Conference, sponsored by the DHHS Administration for Children and Families, Washington, DC, May, 2003.
  • No Work No Welfare: How Are They Faring? presented at the Annual Research Conference of the Association for Public Analysis and Management, Seattle, Washington, November, 2000.
  • Comparing the Progress of Long-term versus Short-term Recipients Post Welfare Reform in South Carolina, presented at the Annual Meeting of the National Association for Welfare Research and Statistics, Cleveland, Ohio, August 1999.

Liu Q

Contact Information

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  • Office: 803.777.4043


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