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Exploring some uses for instrumental-variable calibration weighting

Publication

  • Report

2013

The WTADJX procedure incorporated into the 2012 release of SUDAAN 11® does instrumental-variable calibration weighting using a flexible nonlinear weight-adjustment function. We review the theory behind this procedure and discuss two potential...

Criteria for evaluating general database migration tools

Publication

  • Report

2012

Software updates often involve data migration, especially when converting legacy software implemented to interface with outdated relational database management systems or other nonrelational database electronic files. Moreover, many software...

Americans’ perceived and actual understanding of energy

Publication

  • Report

2012

To address the lack of information about American’s perceived and actual knowledge related to energy, RTI researchers measured three concepts: perceived understanding of energy, demonstrated energy knowledge, and the ability to interpret an...

Shale gas: The promise and the peril

Publication

  • Book

2012

Shale gas has the potential to transform the U.S. energy-based economy in the electricity, transportation, and chemical sectors. U.S. success can be expected to translate to Europe and other parts of the world. Shale gas production is uniquely...