Questions and Answers
What is a repeated measure in the context of Repeated Measures ANOVA?
What is another name for Repeated Measures ANOVA?
In what format should the data be set out for Repeated Measures ANOVA?
What type of variables are suitable for Repeated Measures ANOVA?
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What assumption should hold for the dependent variable between the related groups in Repeated Measures ANOVA?
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Which of the following examples best illustrates a repeated measure?
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What does Repeated Measures ANOVA determine?
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In SPSS, what can be carried out after setting out the data in the required format for Repeated Measures ANOVA?
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Which level of measurement is suitable for the variable to be analyzed using Repeated Measures ANOVA?
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What should hold for the dependent variable between related groups in Repeated Measures ANOVA?
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In what way are repeated measures organized?
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What can outliers in data do to the results of a repeated measures ANOVA?
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What does the sphericity assumption refer to in a repeated measures ANOVA?
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What does violation of the sphericity assumption increase in a repeated measures ANOVA?
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What does the denominator of F ratio in a repeated measures ANOVA table include?
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Can repeated measures ANOVA be used with or without a control group?
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What provides information on the sums of squares, mean squares, and assumptions in a repeated measures ANOVA?
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What do multivariate tests like Mauchly's Test of Sphericity help to test?
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When conducting pairwise comparisons in a repeated measures ANOVA, what are you comparing?
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What do Multivariate Tests like Pillai's Trace provide for a repeated measures ANOVA?
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In a 2-week measurement study with data for seven subjects on three occasions, how many measurements were taken in total?
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Study Notes
Repeated Measures ANOVA and Assumptions
- Outliers in data can distort differences between related groups and reduce accuracy of results
- Sphericity assumption refers to differences in variances in levels of the repeated measures factor
- Violation of sphericity assumption increases Type I error; Mauchly's Test of Sphericity can test this assumption
- Repeated measures ANOVA tests differences between related population means
- Hypotheses for repeated measures ANOVA include testing for differences between population means
- Repeated measures ANOVA can be used with or without a control group
- Denominator of F ratio in repeated measures ANOVA table includes within subjects error and total degrees of freedom
- Example of a 2-week measurement of anxiety scores after treatment, with data for seven subjects on three occasions
- Multivariate Tests, such as Mauchly's Test of Sphericity, help to test the sphericity assumption
- Tests of Within-Subjects Effects provide information on the sums of squares, mean squares, and assumptions
- Pairwise comparisons can be used to compare means at different time intervals
- Multivariate Tests, such as Pillai's Trace, provide effect size information for the repeated measures ANOVA.
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Description
Learn the objectives and key concepts of repeated measures ANOVA, including understanding what is meant by repeated measures, setting out data, conducting analyses in SPSS, and interpreting the output. Also known as 'Dependent groups' or 'ANOVA for correlated samples'.