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Lecture 5 - 101 - Research design, ethics

Lecture 5 - 101 - Research design, ethics - Research design...

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Research design, ethics considerations 5 – September 20, 2010
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Today What have we seen so far? Research designs Ethics
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What have we seen so far? Psychology is a science Psychologists study a vast range of phenomena Principles for evaluating scientific claims Extraordinary claims require extraordinary evidence Use the simplest explanation Replicate findings Be suspicious of: Ad hoc immunizing hypotheses Lack of self-correction Overreliance on anecdotes Evasion of peer review Psychobabble
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What have we seen so far? How are you going to measure the thing you are going to study? Operational definitions – something countable How are you going to collect your data? Observation (naturalistic or structured) Self-report, survey, interviews Psychophysiological measures Case study
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Reliability and validity of your information Reliability Consistency, repeatability of a measure Inter-rater Test-retest Validity How accurately the measure captures the characteristics the researcher is trying to study
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