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PSY201 8.28.13 - Wednesday August 28 2013 Set of...

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8/27/13’ 1’ Wednesday,’August’28,’2013’ Set of mathema*cal procedures for’ organizing,’summarizing,’and’interpre<ng’ informa<on’ Method’of’pursuing’truth’ Drawing’ generalizable’conclusions’from’a’limited’ set’of’observa<ons’ Descrip*ve ’versus’ Inferen*al ’sta<s<cs’ Descrip*ve: Used’ to summarize and describe a’group’of’numbers’ Inferen*al: Used’ to draw conclusions and make inferences ’that’are’based’on’a’group’of’ numbers,’but’ go beyond the’group’of’ numbers’
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8/27/13’ 2’ Variable A’characteris<c’that’can’have’diferent’values’ Value A’possible’number’or’category’that’a’score’can’ have’ Score A’par<cular’person±s’value’on’a’variable’ Variable = AGE A’characteris<c’that’can’have’diferent’values’ Possible values = 0 - 100+ YEARS A’possible’number’or’category’that’a’score’can’ have’ Score = 20 YEARS A’par<cular’person±s’value’on’a’variable’ Variable = ?? A’characteris<c’that’can’have’diferent’values’ Possible values = ?? A’possible’number’or’category’that’a’score’can’ have’ Score = ?? A’par<cular’person±s’value’on’a’variable’
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8/27/13’ 3’ Levels of Measurement ’(or’Kinds’of’Variables)’ Numeric (quan<ta<ve)’variable’ Examples?’ Nominal (categorical)’variable’ Examples?’ Discrete Variable Variable’that’has’ speciFc values and’ cannot ’have’ values’in’between’those’values’ Examples?’ Con*nuous Variable Variable’for’which,’in’theory,’there’are’an’ inFnite number of values between any two values Examples?’ Nominal scales Unordered’categories’(e.g.,’favorite’color,’religion,’marital’
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PSY201 8.28.13 - Wednesday August 28 2013 Set of...

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