1. Sociology, Anthropology, and Criminal Justice, Clemson University, Clemson, SC, USA;
2. Research Triangle Educational Consultants, Raleigh, NC, USA;
3. Shiley-Marcos School of Engineering, University of San Diego, San Diego, CA, USA;
4. School of Engineering Education, Purdue University, West Lafayette, IN, USA;
5. Department of Sociology, University of San Diego, San Diego, CA, USA