1. Mem. ASME Department of Industrial and Manufacturing Engineering, The Pennsylvania State University, 343 Leonhard Building, University Park, PA 16802-1401 e-mail:
2. Mem. ASME School of Engineering Design, Technology and Professional Programs, The Pennsylvania State University, 213 Hammond Building, University Park, PA 16802-1401 e-mail:
3. Industrial and Organizational Psychology, The Pennsylvania State University, 141 Moore Building, University Park, PA 16802-1401 e-mail:
4. Mem. ASME School of Engineering Design, Technology and Professional Programs, The Pennsylvania State University, 213-P Hammond Building, University Park, PA 16802-1401 e-mail: