One-Way ANOVA and the SPSS Data Set
This week, you will apply your understanding of the one-way ANOVA to the SPSS data set.
ANOVA APPLICATION AND INTERPRETATION
Instructions
Complete the following for this assignment:
For this assignment you will use the Data Analysis and Application template (DAA Template [DOC]).
For help with SPSS, refer to Step-by-Step SPSS: ANOVA [DOCX].
For help copying SPSS output into your DAA, review the Copy/Export Output Instructions [HTML].
Click on the SPSS Speedrun button to watch a brief tutorial video on this assignment.
Click here to watch the video
Click on the Deeper Dive button to watch a longer video on how to interpret the SPSS output.
Click here to watch the video
For information on the data set, you may find the Data Set Instructions [DOCX] helpful.
Refer to the 7864 Course Study Guide for information on analyses and interpretation.
The grades.sav file is a sample SPSS data set. The data represent a teachers recording of student demographics and performance on quizzes and a final exam across three sections of the course. Each section consists of 35 students (N = 105). There are 21 variables in grades.sav.
This weeks assignment is on ANOVA. You will analyze the following variables in the grades.sav data set:
SPSS Variable Definition
Section Class section
Quiz3 Quiz 3: number of correct answers
Step 1: Write Section 1 of the DAA: The 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 analysis of variance (ANOVA).
Step 2: Write Section 2 of the DAA: Testing Assumptions
Test for one of the assumptions of ANOVA normality.
Create SPSS output showing the Shapiro-Wilk test of normality. Run the Shapiro-Wilk test on the dependent variable test for the entire sample. Do not split the data up by section before running the normality test.
Paste the table in the DAA.
Interpret the Shapiro-Wilk test and how you determined whether the assumption of normality was met or violated.
Step 3: Write Section 3 of the DAA: Results and Interpretation
Paste the following SPSS tables into the document:
Descriptives table.
ANOVA table.
Multiple Comparison table.
Report the means and standard deviati
ons 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 and state whether it is accepted or rejected.
Finally, if the F is significant, interpret the post-hoc tests (multiple comparisons).
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
Analyze how you might use the ANOVA in your field of study.
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.
Submit your DAA template as an attached Word document in the assignment area.
Competencies Measured
By successfully completing this assignment, you will demonstrate your proficiency in the following course competencies and assignment criteria:
Competency 1: Analyze the computation, application, strengths, and limitations of various statistical tests.
Analyze statistical assumptions.
Competency 2: Analyze the decision-making process of data analysis.
Articulate the data analysis plan.
Competency 3: Apply knowledge of hypothesis testing.
Interpret statistical results and hypotheses.
Competency 4: Interpret the results of statistical analyses.
Explain statistical conclusions, the limitations of the test, and possible alternative explanations.
Competency 6: Apply the results of statistical analyses (your own or others) to your field of interest or career.
Analyze the potential applications of the test in the field and their implications.
Competency 7: Communicate in a manner that is scholarly, professional, and consistent with the expectations for members in the identified field of study.
Communicate in a manner that is scholarly, professional, and adheres to APA style and formatting.
Resources
ANOVA Application and Interpretation Scoring Guide.
View all documents I have attached for you.
Use grades.sav as the instructions state.
Let me know if you need anything that is not provided in this description or in the attachments.