Chapter 9 Part 1- Skeleton

Chapter 9 Part 1- Skeleton - Psy250: Scientific Inquiry...

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Conducting Experiments Psy250: Scientific Inquiry Chapter 9
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A Lot to Consider When Running an Experiment Who will be in our study? How do we manipulate the independent variable? What do we need to think about when measuring a dependent variable? What happens when the study is done?
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Selecting Research Participants May study animals or humans; young or old; ill or healthy Recall… We typically get a sample of participants from our population of interest Probability vs. nonprobability sampling Since most psychological experiments test hypotheses about behavior or relationships between variables, typically use nonprobability sampling
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Also recall… Using no probability samples (haphazard samples of convenience) is fine, but it can affect generalizability Evidence seems to suggest that many studies can and do generalize. *Need to select a sample size
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This note was uploaded on 03/10/2011 for the course PSY 250 taught by Professor Briannalharris during the Summer '10 term at State University of New York.

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Chapter 9 Part 1- Skeleton - Psy250: Scientific Inquiry...

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