PDF Lecture 4 - Ethics.pdf - Experiments and Ethics 85-102...

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Experiments and Ethics 85-102 Introduction to Psychology Dr. Kody Manke January 26, 2017
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Checking In Writing Assignment #1 Due next Tuesday Exit Tickets Please use at least ¼ sheet of paper Absences/the flu You don’t have to update me… but if you have a doctor’s note scenario, please cc: Amedee as well Course Content Heads Up
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Today: Ethics …but first, let’s wrap up our discussions about research methods
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Two types of studies Experimental Manipulate independent variable Random assignment Easier to control other variables Can infer causation Correlational Measure all variables No random assignment Control is harder Correlation causation
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Two types of studies Correlational Experimental Strengths More widely applicable, naturalistic Can infer causation Weaknesses Difficult to infer causation Artificial, can be unethical, can be impractical
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The scientific method Change theory to account for results, if necessary Test hypothesis
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Types of studies Correlational Measure variables Assess association between them Cause is ambiguous Experimental
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Types of Experiments Between-subjects design Divide participants into groups Each group is in one study “condition” Within-subjects design Participants experience both study conditions
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Types of Experiments Let’s say that you have a theory : People enjoy participating in activities in groups more than doing activities alone You generate a hypothesis : People who watch a comedy film clip with other people, rather than alone, will rate that film clip as funnier There are two different types of experiments we could use to test this claim!
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Between-Subjects Design GROUP A: Watch a film clip alone GROUP B: Watch a film clip in a group Rate how funny clip was
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Between-Subjects Design We used a between-subjects design. Participants were randomly assigned to watch a comedy film clip in either a ‘group watching’ condition in groups of 3 (with 2 confederates) or a ‘solo watching’ condition.
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