Complete a data analysis report using ANOVA for assigned variables.
Complete a data analysis report using ANOVA for assigned variables.
1 Accurately articulates the data analysis plan. Ensures the plan is well justified, logical, and thorough.
2 Accurately analyzes and thoroughly evaluates and assesses statistical assumptions.
3 Accurately analyzes and thoroughly evaluates and assesses statistical assumptions.
4 Ensures the statistical conclusions, the limitations of the test, and/or possible alternative explanations are logical and thoroughly evaluated.
Thoroughly evaluates potential applications of the test in the field and their implications.
Template in downloads
You’re starting to learn some important information about your data, but you still want to know more. It’s time for a one-way analysis of variance (ANOVA). Unlike t-tests,
which only allow for comparisons of two groups, ANOVA will allow you to examine potential group differences for variables with multiple levels.
example of layout
This assessment is on ANOVA. You will analyze the following variables in the grades.jasp data set:
Variable Definition
Section Class section
Quiz3 Quiz 3: number of correct answers
Variables and Definitions
Step 1: Write Section 1 of the DAA: Data Analysis Plan
Name the variables used in this analysis and whether they are categorical or continuous.
State a research question, null hypothesis, and alternate hypothesis for the ANOVA.
Step 2: Write Section 2 of the DAA: Testing Assumptions
Test for one of the assumptions of ANOVA – homogeneity.
Create statistical software output showing the Levene’s Test for Equality of Variances.
Paste the table in the DAA template.
Interpret the homogeneity test to determine whether the assumption of homogeneity is violated or is not violated.
Step 3: Write Section 3 of the DAA: Results & Interpretation
If the homogeneity assumption is not violated (Section 2), run the “Homogeneity corrections: None” version of the ANOVA. Follow up with the “Standard” version of the Tukey post hoc test.
However, if the homogeneity assumption is violated (Section 2), run the “Homogeneity corrections: Welch” version of the ANOVA. Follow up with the “Games-Howell” version of the Tukey post hoc test.
Paste the following statistical software tables into the document:
Descriptives table.
ANOVA table.
Post Hoc Tests table (Tukey correction).
Below the output:
Report the means and standard deviations of quiz3 for each group of the section variable.
Report the results of the F test and interpret the statistical results against the null hypothesis; state whether the null hypothesis is rejected or not rejected.
Finally, if the F is significant, interpret the post-hoc tests.
Step 4: Write Section 4 of the DAA: Statistical Conclusions
Provide a brief summary of your analysis and the conclusions drawn about this ANOVA.
Analyze the limitations of the statistical test and/or possible alternative explanations for your results.
Step 5: Write Section 5 of the DAA: Application
Name an independent variable (the IV should have three or more groups or categories) and dependent variable that would work for such an analysis and why studying it may be important to the field or practice.
Paper Format: APA
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