Assess the assumption of normality and sphericity assumption

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Assignment:

Provide a context of the data set. Specifically, you are a teacher interested in determining if time in the course affects performance on quizzes. In Section 1 of the DAA, articulate your within-subjects factor and the outcome variable. Specify the scale of measurement for each variable and the sample size of the data set.

Specify a research question related to the repeated measures ANOVA. Articulate the null hypothesis and alternative hypothesis. Specify the alpha level.

Assess the assumption of normality and the sphericity assumption. Provide the output for the Mauchly test. Report the results of the Mauchly W and interpret it in terms of the sphericity assumption. If sphericity is violated, analyze the epsilon estimates (Greenhouse-Geisser and Huynh-Feldt) and justify your decision for selecting one of the epsilon corrections reported below in Section 4 Interpretation.

To provide context, paste Quizzes 1-5 descriptive statistics output. Report these descriptive statistics in your narrative.

Next, paste the output of the descriptive plot of Quizzes 1-5. Provide an interpretation of this figure.
Then paste the output for the test of within-subjects effects.
Report the correct F and p-value based on your assessment of the sphericity assumption. Report and interpret the effect size.
Interpret the results against the null hypothesis. If the overall F null hypothesis is rejected, paste and interpret the output for simple contrasts.

Discuss the conclusions of the repeated measures ANOVA as it relates to the research question. Conclude with an analysis of the strengths and limitations of repeated measures ANOVA.

Please provide all visuals using JASP.

Reference no: EM133635486

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