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Michael Sinclair, Hanzhi Zhou, Jonathan Gellar

2015/9/9

Title of Presentation: Page 1 WSS Conference on Non-Probability Samples Exploration of Methods for Blending Unconventional Samples with Traditional Probability Samples September 9, 2015 Offices of Mathematica-MPR 1101 First Street NE, 12th Floor Washington DC 20002 1:05 – 1:30pm Michael Sinclair, Hanzhi Zhou and Jonathan Gellar Page 2 2 WSS Sept 9, 2015 Presentation Outline • Re-Introduce Concept of Blended Designs • Methods – Review Naïve, calibrated, and model-based procedures – Explore Blending probability and nonprobability samples via composite estimation • Present Simulation Results • Discussion Page 3 3 WSS Sept 9, 2015 Presentation Potential Benefits of Blending • Augment existing probability sample based study to – Increase overall precision – Increase sample sizes for hard-to-reach populations – Produce more timely or interim estimates (in-between cycles) – Save data …