PSY30400 Midterm: Take Home Points Exam 3 Part 8
Take Home Points Exam 3
- representativeness
o The probability that A is a member of B can be determined by how well the
properties of A resemble B
▪ Robert wears glasses and reads a lot
• more likely that Robert is a librarian
o ignoring base rate
o Base rate
▪ relative proportion of different classes in the population
o Conjunction rule:
▪ probability of a conjunction of 2 events cannot be higher than the
probability of single constituent (a or b alone)
o Ignoring sample size
▪ Law of large numbers
• the larger the number of individuals that are randomly drawn
from a population the more representative the resulting group
will be of the entire population
- anchoring
• Foot in door vs. door in the face – used by sales people
- expected utility
o Assumes people are basically rational—if people have all relevant info, they will
make a decision that results in maximum expected utility
find more resources at oneclass.com
find more resources at oneclass.com
