The aim of this paper is to study the modulator effects of task type (intel
lective, creative and bargaining) and communication channel on the influenc
e of time pressure on group performance quality. For this reason, it was ca
rried out an experiment using a sample of 124 subjects, that were randomly
assigned into the six different experimental conditions (3*2 -communication
channel*time pressure) in four-person groups. The results showed the relev
ance of type of task and communication channel in understanding the relatio
n between time pressure and group performance quality. It is suggested that
future research will must take into account environmental or individual va
riables as modulators to reach a better understanding of the relation betwe
en time pressure and group performance quality, whose literature results ar
e often contradictory.