Mark the two boxes that are true:1. Feudalism is a system of cooperation among peoples which was basically an exchange of land for protection. 2. A summons is a call to appear in court. 3. A vassal was given the rights to control the fief and to have ownership of it. 4. When the vassal gave the lord his crops, it was known as feudal aids.

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.