Fourth, projects in the study were relatively small (40 person-months, on average). This might partially account for why both classes of decision rights in the sample leaned slightly towards IT. Although the most visible IT project failures studies have focused on large, mega projects, the majority of the routine development work in organizations encompasses smaller projects. To assess whether project size systematically biased the results, post hoc tests were conducted to assess whether project size was significantly related either to decision rights de/centralization or to ISD performance. Project size did not have a significant relationship with DCR decentralization (ß = −0.097, T -value = −0.792, ns), DMR centralization (ß = −0.001, T -value = −0.011, ns), ISD efficiency (ß = −0.134, T -value = −1.072, ns), or ISD effectiveness (ß = −0.021, T -value = −0.170, ns). This suggests that the smaller projects that characterized the data do not systematically bias the results.