1. Associate Professor, Univ. of Washington, Dept. of Construction Management, Seattle, WA 98195-1610.
2. Ph.D. Candidate, Dept. of Construction Management, Univ. of Washington, Seattle, WA 98195-1610 (corresponding author).
3. Assistant Professor, College of Architecture, Construction and Planning, 501 W. César E. Chávez Blvd., San Antonio, TX 78207.
4. Associate Professor, Dept. of Construction Management, Univ. of Washington, Seattle WA, 98195-1610.