1. Assistant Professor, Haskell and Irene Lemon Construction Science Div., Univ. of Oklahoma, 830 Van Vleet Oval, Gould Hall, Norman, OK 73019-6141 (corresponding author).
2. Ph.D. Candidate, Performance Based Studies Research Group, Del E. Webb School of Construction, Arizona State Univ., 660S. College Ave., Tempe, AZ 85281.
3. Associate Professor, Performance Based Studies Research Group, Del E. Webb School of Construction, Arizona State Univ., 660S. College Ave., Tempe, AZ 85281.