The worst thing that a developmental cascade can lead to is

According to the Marticchio study about attitudes and job training, which is the main focus of the article I

Think I Can, I Think I Can, if a test has a floor effect it will (a) not discriminate between those who know the material and those who do not (b) be valid, but not reliable (c) take very little time to do (d) produce a normal distribution of scores, even in a small group

Recall that in one condition of the experiment conducted by Stasser and Titus (1985) about Student Senate 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 a. focus discussion on the information that all members know. b. often ignore dissenting opinions. c. seldom can agree on who is most expert. d. avoid differences of opinion, given conformity pressures.