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Statistics MCQ

The outcome where the effect of one factor is differentiated across another factor is called

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Correct Answer:
Interaction effect

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In analysis of variance, when a factor or an independent variable has a significant effect upon the outcome variable is called

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Main effect

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An analysis of ____ with more than one factor or independent variable.

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Variance

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A main effect indicates ______.

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The mean differences among the levels of one variable

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Researchers often use factorial designs because ______.

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Both allow us to see the interaction of factors and more closely approximate the real world

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Two variables interact when ______.

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The effect of one independent variable depends on the level of the other independent variable

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In a 2 × 2 design with 40 participants equally distributed across the conditions, what are ______ and ______.

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= 2; = 20

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In a two-way ANOVA, an F involving a comparison among the level means of a factor is referred to as a test for the significance of ______.

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A main effect

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A(an) ______ is when an analysis of the data reveals a difference between the levels of any factor.

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Correct Answer:
Main effect

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How many participants would be required for a completely randomized 4 × 5 between-subjects design with three observations per cell?

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60

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A two-way ANOVA contains ______.

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A main effect for each factor and an interaction

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A factorial design involves ______.

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Measuring more than one dependent factor (variables)

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A significant interaction effect indicates that ______.

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The influence of one factor is not the same for each level of the other factor

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How many conditions would there be in a factorial design with 2 levels of factor A and three levels of factor B?

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Correct Answer:
6

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A two-way ANOVA means that the experimental design includes ______.

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Two independent variables

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In a two-way ANOVA, the interaction effect is the ______.

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Extent to which the influence one factor has on scores depends on the level of the other factor

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When an experiment design has two factors but one factor involves related samples while the other factor involves independent samples, we should perform a ______.

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Correct Answer:
Two-way mixed-design ANOVA

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