In addition to the indirect effects, the results of the
test for the combined effect of MC and OC indicate a significant
positive interaction effect (ˇ = 0.218; p < 0.01) for
the exploratory project subgroup and a significant positive
interaction effect (ˇ = 0.341; p < 0.001) for the exploitative
projects, when project size and uncertainty are controlled
for (Table 5). Thus, Hypothesis 3 was supported. To shed
some light on the nature of the interactions, “low” and
“high” subgroups (A, B, C and D) were created for OC
and MC, and the differences in the PERF and INN mean
scores for each of the four subgroups in exploratory and
exploitative projects respectively were examined (Table 6).