Which of the following is a gene that is suspected to be related to early-onset Alzheimer's disease?

When close-knit group members experience groupthink, it means that ________

a. they tend to overestimate the personality factors of others and underestimate the situation. b. they tend to use problem-solving procedures that have been effective in the group's past. c. they tend to take individual credit for good decisions and blame the group for poor decisions. d. they tend to think alike and to suppress disagreement for the sake of harmony.

A psychological cause of prejudice is that it ________

a. reduces feelings of entrapment. b. increases self-esteem. c. increases altruistic behavior. d. decreases us-them thinking.