stats1 - 031:010 - Research Methods in Psychology Spring,...

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031:010 - Research Methods in Psychology Spring, 2010 Feb 2 nd
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Apples and Apples simple, coherent set of data theory of interest actual (raw) measures of subject(s) “pre - processing” operational definition
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sampling loop population sample summary of the sample descriptive statistics inferential statistics
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some text-only issues floor and ceiling effects three kinds of reliability inter-rater, test-retest, & internal consistency
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a “disagreement” with the t ext what contributes to the e in True Score Theory? X = T + e the text includes things like “bias” while uncontrolled bias does, indeed, affect X , this is not often thought of as being part of e complete equation: X = T + I 1 + I 2 + … + I k + e
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Outline Descriptive vs Inferential Statistics Summarizing Data
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Descriptive vs Inferential Stats Descriptive Stats summarize a given set of data the set of data is usually a sample, not the entire population
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stats1 - 031:010 - Research Methods in Psychology Spring,...

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