Table 3 shows correlations found between the response variables raised in the research and the independent variables selected from the analyzed data set. When time is used as a response variable the analysis results showed weak correlation values with the independent variables. On the contrary, using the construction speed as a dependent variable we obtained very high correlation values (all significant at the 0.01 level), especially with all variables related to GFA and, to a lesser degree, with the variable representing the total cost. Considering that the analysis of correlations identified the construction speed as the most appropriate response variable to develop the