According to Frank Sulloway's 1996 research on birth order first born children in a family have more dominant personalities, but may not be as sociable as later born children.

After extensive investigation into the amazing abilities of Clever Hans, it was determined that he was not actually responding to the questions he was being asked, but rather was responding to the subtle facial and body gestures of his owner

Which psychologist made this determination? a. Wilhelm Steckel b. Oskar Pfungst c. Sigmund Freud d. Edward Titchener

The factor most likely to determine whether groupthink becomes a problem for a group is its ______

a. size b. status c. intellect d. cohesiveness