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Related Flashcards
Cards In This Set
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Factorial design
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Design in which all levels of each independent variable are combined with all levels of the other independent variables. A factorial design allows investigation of the separate main effects and interactions of two or more independent variables.
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Interaction
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Differing effect of one independent variable on the dependent variable, depending on the particular level of another independent variable
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IV x PV design
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Factorial design that includes both an experimental independent variable (IV) and a nonexperimental participant variable (PV)
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Main effect
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Direct effect of an independent variable on a dependent variable
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Mixed factorial design
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Design that includes both independent groups (between-subjects) and repeated measures (within-subjects) variables
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Moderator variable
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Variable that influences the nature of the relationship between two other variables (an independent variable and dependent variable). In a factorial design, the effect of the moderator variable is revealed as an interaction
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Simple main effect
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In factorial design, the effect of one independent variable at particular level of another independent variable
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If you predict a curvilinear relationship, you must have at least three levels of the independent variable in your experiment. True or false.
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True.
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A researcher studied the effect of defendant gender (male-female) and type of crime (robbery-embezzlement) on juror decisions. How many conditions are in this study?
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Four
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If a study has two or more independent variables, it is called a factorial design. True or false.
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True
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Participants gave longer sentences for embezzlement than robbery, irrespective of gender. This implies that there was a:
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Main effect of type of crime
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In the IV X SV design, one of the independent variables is a characteristic of participants such as personality type. True or false.
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True
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In a mixed factorial design, one of the independent variables is a characteristic of participants such as personality type. True or false.
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False
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A researcher interested in attitude change designed an experiment that examined the effect of age (18-25 years of age, 35-50, and over 60) and type of media (newspaper, radio, television) on attitude toward a tax increase for local schools. In a completely independent groups design with 20 participants per condition, the researcher needs to study ______ people.
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180
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The effect of motivation depended on whether there was a clear standard for excellence. This sentence implies that there was a(n):
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Interaction effect
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