PSYB04H3 Chapter Notes - Chapter 2: Bias Blind Spot, Review Article, Statistical Hypothesis Testing

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12 Jun 2017
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Chapter 2: sources of information: why research is best and how to find it. Three sour(cid:272)es of e(cid:448)ide(cid:374)(cid:272)e for people"s (cid:271)eliefs experience, intuition and authority and compares them to a superior source of evidence: empirical research. Comparison group enables us to compare what would happen both with and without the thing we are interested in. To test the bleeding cure, doctors would have had to systematically count death rates among patients who were bled versus those who received some comparison treatment (or no treatment) The old age cure -- bloodletting was not falsifiable: never set up a systematic comparison how many have died from it compared to how many have lived. In order to compare all numbers, create a table, or matrix: basi(cid:374)g (cid:272)o(cid:374)(cid:272)lusio(cid:374)s o(cid:374) perso(cid:374)al e(cid:454)perie(cid:374)(cid:272)e is pro(cid:271)le(cid:373)ati(cid:272) (cid:271)e(cid:272)ause life does(cid:374)"t offer a (cid:272)o(cid:373)pariso(cid:374) experience. Another problem with basing conclusions on personal experience is that in life, too much is going on we cannot be sure what caused what.

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