PSYC-104 Lecture Notes - Lecture 2: Base Rate Fallacy, Base Rate, Blind Experiment
6 Apr 2016
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September 16, 2015: statistically significant: 19 times out of 20 an experiment result must be the same. The beauty and necessity : but i know it works: not good research design, impressions are often wrong, perceptions can be skewed, ex. Prefrontal lobotomy used in an attempt to fix people with behavioral issues. Took away half of their brain, people completely changed: egaz moniz won a nobel prize for this, today it is shunned. R=strength: looking for the relationship, 0 means no relationship, depicted in a scatterplot, illusory correlation: perception of an association, but statistics. Each dot represents a single person"s data prove it doesn"t exist. Has a crime occurred: full moon + crime, full moon + no crime. Correlation: prediction, not causation: positive correlation: the points move in the same direction, strong correlation: value of 8, moderate: value of 6, weak: value of 2, the stronger the correlation, the better we can predict.
