What is the relationship between leader-follower communication and performance in in-groups and out-groups? For in-groups, more communication is predictive of higher performance, for out-groups, more communication is predictive of lower performance. For in-groups, more communication is predictive of lower performance, for out-groups, more communication is predictive of higher performance. For both in-groups and out-groups, more communication is predictive of higher performance. For both in-groups and out-groups, more communication is predictive of lower performance