factorial1 - 031:010 - Research Methods in Psychology...

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Unformatted text preview: 031:010 - Research Methods in Psychology Spring, 2010 Apr 6 th 1 Factorial Designs experiments often have more than one factor (IV) this allows them to test for more than one effect ( saving time over having to run multiple experiments ) it also allows them to test whether the specific combination of factor levels makes a difference ( which is impossible to test in separate experiments ) 2 Outline Definitions and Labels Examples (and Names) of Interactions 3 Factorial Designs One-way Designs have only one factor e.g., congruent vs neutral vs incongruent ( RED ) ( XXXX ) ( BLUE ) one-way, three- level design 4 Factorial Designs Factorial Designs have more than one factor e.g., congruent vs neutral vs incongruent all upper case vs all lower case ( RED ) ( XXXX ) ( BLUE ) ( red ) ( xxxx ) ( blue ) 2 x 3 factorial design 5 Factorial Designs Factorial Designs 3 subtypes have more than one factor- if all possible combinations are included, then its a fully- crossed design...
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factorial1 - 031:010 - Research Methods in Psychology...

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