PSYC11H3 Study Guide - Midterm Guide: Blood Pressure, Unstable Angina, Electrocardiography
Document Summary
We use the availability heuristic too much. We should focus on the decision we make and not a number. We put too much weight on our experiences. When we rely on intuitions we can work with the data to come up with the wrong conclusion. People are bad at balancing the weight of different pieces of information. Scenario: using gpa and sat scores to decide which students to admit to college. Statistical method: use past data to figure out which weights you should assign to gpa and sat to best predict first year undergrad performance. Algorithm outperform humans, even if we are experts in a certain field. Example: a leading cardiology expert attempted to predict heart attacks from 2, 240 ekgs: expert did alright, but computer did way better, expert correctly identified 620 of the 1,120 heart attacks, computer correctly identified 738.
