Repeated Measures/Related Samples ANOVA - Exam 2

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9 Terms

1
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A repeated measures ANOVA is conducted when you want to…

Test the same sample on the dependent variable three times

2
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A related sample is conducted when you want to…

Test three different samples on the same dependent variable once

3
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What are the assumptions of this test?

Independence of observation, normal distribution of the dependent variable, sphericity

4
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What is sphericity asking?

Is the variance of the differences between each pair of groups approximately equal

5
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How do you test for sphericity?

Mauchley’s W test

6
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How do you interpret Mauchley’s W test?

If p < .05, sphericity is violated and needs a correction

7
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What are the corrections for a sphericity violation?

Greenhouse-Geiser or Huynh-Feldt

8
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What do the corrections for a sphericity violation do?

Adjusts the degrees of freedom to decrease the probability of type 1 error

9
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What are the steps for a repeated measures ANOVA?

Mauchley’s test, then the remaining steps are the same as a between subjects ANOVA