1. Estimator, GH Phipps Construction Companies, 5995 Greenwood Plaza Blvd., Suite 100, Greenwood Village, CO 80111.
2. Assistant Professor, Construction Management, Brigham Young Univ., 230 SNLB, Provo, UT 84602.
3. Assistant Professor, Construction Management, Brigham Young Univ., 230 SNLB, Provo, UT 84602 (corresponding author).