Are all signs that a driver may be impaired.

traveling in the wrong lane, burnt taillights, and speeding

traveling in the wrong lane, making a left-hand turn, and failure to signal

traveling in the wrong lane, running stop lights, and weaving from side to side

traveling in the wrong lane, speeding, and expired license plates

Recall that in one condition of the experiment conducted by stasser and titus (1985) about student council president candidates, all group members had access to the same information, and that in another condition, members had unique information that other group members didn't know. in the second (unshared information) condition, the group made a worse decision than in the first (shared information) condition. this occurred because groups seldom can agree on who is most expert. focus discussion on the information that all members know. often ignore dissenting opinions. avoid differences of opinion, given conformity pressures.