Jan 28_S_Sampling Part

Jan 28_S_Sampling Part - Sampling January 28, 2011 Barbie...

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Click to edit Master subtitle style Sampling January 28, 2011 Barbie Chambers
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Review Concepts & Constructs Variables Independent Variable Dependent Variable Type (Styles) of Variables Continuous Discrete Measurement Scales Points Specialized Scales
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Reliability & Validity Monday Tuesday Wednesday Thursday Friday Reliab le Valid Reliable Valid Reliable Valid
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Exhaustive & Mutually Classify ad themes during prime-time TV Must create measurement categories that are: Exhaustive– account for all (EVERY OPTION) Funny, stupid, scary, sexy, other….
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Population Goal of research is to describe a population A population is a group or class of Subjects Variables Concepts Phenomena
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Population It’s the overall object you want to study Examples Ad themes in prime time during sweeps Violence in summer movie trailers
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Population What are problems with studying a population? Time constraints Cost constraints Possibility constraints Usually take a sample from the population Subset of the population that’s representative of the entire
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Population vs. Sample
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Jan 28_S_Sampling Part - Sampling January 28, 2011 Barbie...

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