BASIC EFFECT SIZE GUIDE WITH SPSS AND SAS SYNTAX英语教案

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1、BASICEFFECTSIZEGUIDEWITHSPSSANDSASSYNTAXGregoryJ.Meyer,RobertE.McGrath,andRobertRosenthalLastupdatedJanuary13,2003Pending:1.Formulasforrepeatedmeasures/pairedsamples.2.Explanationof'setaside'lambdaweightsof0whencomputingfocusedcontrasts.3.Applicationstomultifactordesigns.SECTIONI:COMP

2、UTINGEFFECTSIZESFROMRAWDATA.I-A.ThePearsonCorrelationastheEffectSizeI-A-1:CalculatingPearson'srFromaDesignWithaDimensionalVariableandaDichotomousVariable(i.e.,at-TestDesign).I-A-2:CalculatingPearson'srFromaDesignWithTwoDichotomousVariables(i.e.,a2x2Chi-SquareDesign).I-A-3:CalculatingP

3、earson'srFromaDesignWithaDimensionalVariableandanOrdered,Multi-CategoryVariable(i.e.,aOnewayANOVADesign).I-A-4:CalculatingPearson'srFromaDesignWithOneVariableThatHas3orMoreOrderedCategoriesandOneVariableThatHas2orMoreOrderedCategories(i.e.,anOmnibusChi-SquareDesignwithdf>1).I-B.Cohen'

4、sdastheEffectSizeI-B-1:CalculatingCohen'sdFromaDesignWithaDimensionalVariableandaDichotomousVariable(i.e.,at-TestDesign).SECTIONII:COMPUTINGEFFECTSIZESFROMTHEOUTPUTOFSTATISTICALTESTSANDTRANSLATINGONEEFFECTSIZETOANOTHER.II-A.ThePearsonCorrelationastheEffectSizeII-A-1:Pearson'srFromt-Te

5、stOutputComparingMeansAcrossTwoGroups.II-A-2:Pearson'srFrom2x2Chi-SquareOutput.II-A-3.Pearson'srFromFTestOutputWhenJustTwoGroupsHaveBeenCompared.II-A-4:Pearson'srFromFTestOutputWhenMoreThanTwoGroupsHaveBeenCompared.II-A-4-a:Scenario1-WhengivengroupMsandFortfromafocusedcontrastII-A-4-b

6、:Scenario2-WhengivengroupMs,SDs,andnsII-A-4-c:Scenario3-WhengivengroupMsandresultsfromanomnibusFtestII-A-5:Pearson'srFromtheOutputofanOmnibusChi-SquareTest(i.e.,df>1).II-A-5-a:TheRosnowandRosenthal(1996)approachII-A-5-b:ReconstructingthedatabaseII-A-6.Pearson'srfromCohen'sd.II-A-6-a:T

7、heexactformula.II-A-6-b:Theapproximateformula.II-B.Cohen'sdastheEffectSizeII-B-1:Cohen'sdfromt-TestOutput.II-B-1-a:Whenthesizeofeachgroupisknown.II-B-1-b:Whenthesizeofeachgroupisunknownbutdfisavailable.II-B-2:Cohen'sdFromFTestOutputWhenJustTwoGroupsHaveBeenCompared.II-B-3:Cohen'sdfrom

8、Pears