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monfils 418_Jan 16 2014

monfils 418_Jan 16 2014 - Sta$s$csandresearchdesign...

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Sta$s$cs and research design Lecture 1: Class overview Prof. Marie Monfils
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Psychology 418 Prof. Marie Monfils Email: [email protected] Rules: – 1. No emailing the night before a test – 2. Yes‐or‐no ques$ons only! – 3. AOendance
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Text Sherri L. Jackson. Research Methods and Sta$s$cs: A Cri$cal Thinking Approach.
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What is this course about? • There’s variability in everyone and everything. • Some$mes, things/people seem to vary together. • How can we make sense of this variability?
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What is this course about? • Help us makes sense of the rela$onships between events, or sets of events or things
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What is this course about? • Help us makes sense of the rela$onships between events, or sets of events or things – For example: the correla’on between smoking and lung cancer
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What is this course about? • Help us makes sense of the rela$onships between events, or sets of events or things – For example: the correla’on between smoking and lung cancer – But what about the correla$on between cigareOe lighter use and lung cancer?
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What is this course about? • Thinking cri$cally about data
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What is this course about? • Thinking cri$cally about data – 98% of all drowning vic$ms were not wearing lifejackets.
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What is this course about? • Thinking cri$cally about data – 98% of all drowning vic$ms were not wearing lifejackets. – Does this mean that lifejackets save lives?
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What is this course about? • Thinking cri$cally about data – 98% of all drowning vic$ms were not wearing tuxedos Does this mean that tuxedos save lives?
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What is Sta)s)cs? Sta$s$cs refers to a set of procedures and rules used to organize, summarize, and interpret informa$on. Sta$s$cs allow us to make sense of large amounts of data. Sta$s$cs allow us to link the results of a study back to the ques$ons we wanted to answer when we conducted the study.
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Why are Sta)s)cs Important?
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