1. Department of Psychology, Provost’s Distinguished Associate Professor, Georgetown University, Washington, DC, USA
2. Department of Psychology, Professor University of Michigan, Institute for Social Research, Ann Arbor, Michigan, USA
3. Communications, Culture & Technology, Provost’s Distinguished Associate Professor, Georgetown University, Washington, DC, USA
4. Program Manager for Big Data and Data Science, University of Michigan, Institute for Social Research, Ann Arbor, Michigan, USA
5. Assistant Research Scientist, Survey Methodology Program, University of Michigan, Survey Research Center, Ann Arbor, Michigan, USA
6. Department of Computer Science, Professor Georgetown University, Massive Data Institute, Washington, DC, USA