Comparative method: Mill’s method of difference - PowerPoint PPT Presentation

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Comparative method: Mill’s method of difference. Compare cases with different scores on the dependent (y) variable Tentatively reject hypothesis based on independent variable with same scores when DV has different scores : (x 1  y) rejected

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Comparative method: Mill’s method of difference

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Comparative method: Mill’s method of difference

• Compare cases with different scores on the dependent (y) variable

• Tentatively reject hypothesis based on independent variable with samescores when DV has different scores: (x1 y) rejected

• Tentatively supporthypothesis based on independent variable with different scores when DV has different scores: (x2 y) supported

Same score:

reject x1  y

Different scores

Different scores

Comparative method: Mill’s method of agreement

• Compare cases with same score on the dependent (y) variable

• Tentatively supporthypothesis based on independent variable with same scores when DV has same scores: (x3 y) supported

• Tentatively reject hypothesis based on independent variable with different scores when DV has same scores: (x4 y) rejected

Different scores:

reject x4  y

Same score

Same score