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Lecture 3

PSY100 Lecture 3.docx

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University of Toronto St. George
Alison Luby

PSY100 Lecture #3 Jan 23, 2012 . Literary Digest sent surveys via their magazine (prestigious) asking about the 1936 presidential election and predicted Franklin Roosevelt would lose the election to Alfred Landon; Roosevelt won by a landslide nd and became the 32 president . Why was it wrong? . In 1936 only the wealthy had phones (or at least majority) then there is also the issue of work (how much work is done) that negates the opportunity to answer and this simply found out that many rich people will vote for Landon and not what everyone else thinks . Random sampling is a better way of doing the studying compared to convenience sample, why: . Ensures generalized results . It helps avoid subject bias (research participants doesn’t represent larger population) . Validity: what I think I’m studying is what I’m studying . Reliability: Study always gives the same results (instrument of measure might be busted making it incorrect) . Association cortex also called “silent cortex” in the past since we didn’t know exactly what it did (w
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