1. Research Assistant Professor, Dept. of Engineering and Science Education, Glenn Dept. of Civil Engineering, Clemson Online, Clemson Univ., Clemson, SC 29634 (corresponding author).
2. Associate Professor, Dept. of Civil and Environmental Engineering, Univ. of Pittsburgh, Pittsburgh, PA 15261.
3. Professor, Presidential Faculty Fellow for Access, Attainment and Diversity, Dept. of Civil and Environmental Engineering, Colorado School of Mines, Golden, CO 80401.