Analysis Of Variance Assignment

Analysis Of Variance Assignment

•  Anxiety scores for 5 veterans who received behavioral therapy: 104, 108, 107, 106, 103 •  Anxiety scores for 5 veterans who received cognitive therapy:  99, 98, 101, 100, 99 •  Anxiety scores for 5 veterans who received biofeedback therapy: 103, 104, 105, 107, 101 •  Anxiety scores for 5 veterans who received medication therapy: 101, 100, 101, 103, 100.
Assignment: Analysis of Variance (ANOVA)
In Week 4, you explored t-tests, which allowed you to compare a sample to a population or compare two groups to one another. For example, you might want to compare the effectiveness of two types of treatment for insomnia, but what if you want to compare the effectiveness of more than two groups? A one-way analysis of variance, or ANOVA, allows you to do just that—compare multiple groups (called levels) of one independent variable (called a factor). For example, in a study about insomnia treatments, you might compare a level that receives muscle relaxation training to a second level that receives visualization training and, finally, to a third level that receives deep-breathing training. An ANOVA allows you to compare all of the levels at once to see if, in general, the type of treatment influences how long it takes to fall sleep. If results are statistically significant, post hoc analyses then provide even more information by identifying which specific levels differ from one another, ultimately showing you which specific treatments are more effective than others.
This application will allow you to continue your practice with hypothesis testing by comparing scores with ANOVA in order to determine if results are statistically significant. Download the data set that you will use for this Assignment from the Weekly Data Set forum. Be sure to watch this week’s instructional video in the introduction or Learning Resources folder before beginning your Assignment.
Scenario: Imagine that a psychologist working with veterans with post-traumatic stress disorder wants to compare the effectiveness of several therapies focused on reducing symptoms of anxiety. The psychologist randomly sampled 20 veterans who recently returned from combat and randomly assigned each of them to receive one of four interventions for 8 weeks. A survey was used to measure the participants’ anxiety at the end of the 8 weeks. Higher anxiety scores indicate more anxiety. You can find the data for this Assignment in the Weekly Data Set forum found on the course navigation menu.
By Day 7
To complete this Assignment, submit 7 answers to the following. Use SPSS to compare the mean anxiety scores with a one-way ANOVA.

  • Before computing any analyses, state the null hypothesis and alternative hypothesis in words (not formulas).
  • Identify the factor and the dependent variable.
  • Name the levels of the factor.
  • State the degrees of freedom between groups and explain how you calculated it by hand.
  • State the degrees of freedom within groups and explain how you calculated it by hand.
  • Identify the obtained F value using SPSS.
  • Identify the p-value using SPSS.
  • Explain whether the F test is statistically significant. Explain how you know.
  • Explain what the psychologist can conclude about the relationship between different types of therapy and anxiety.
  • Should the psychologist conduct a post hoc test? Why or why not? If post hoc testing is needed, conduct a Tukey HSD post hoc analysis in SPSS. Explain what the results tell you.

Be sure to fully explain the rationale for your answer to each question, including evidence from the text and Learning Resources.
Provide an APA reference list.
Submit three documents for grading:

  • Your text (Word) document with your answers and explanations to the assignment questions, your SPSS Data file, and your SPSS Output file, your SPSS Data file, and your SPSS Output file. Get Argumentative Essay Writing help now
HomeworkMarket
Calculate your paper price
Pages (550 words)
Approximate price: -

Why HomeworkMarket

HomeworkMarket

Quality Researched Papers

We always make sure that writers follow all your instructions precisely. You can choose your academic level: high school, college/university or professional, and we will assign a writer who has a respective degree.

HomeworkMarket

Qualified Writers

We have hired a team of professional writers experienced in academic and business writing. Most of them are native speakers and PhD holders able to take care of any assignment you need help with.

HomeworkMarket

Unlimited Revisions

If you think we missed something, send your order for a free revision. You have 10 days to submit the order for review after you have received the final document. You can do this yourself after logging into your personal account.

HomeworkMarket

Prompt Delivery

All papers are always delivered on time. In case we need more time to master your paper, we may contact you regarding the deadline extension. We will always strive to deliver on time.

HomeworkMarket

Original & Confidential

We use several writing tools checks to ensure that all documents you receive are free from plagiarism. Our editors carefully review all quotations in the text.

HomeworkMarket

24/7 Customer Support

Our support agents are available 24 hours a day 7 days a week and committed to providing you with the best customer experience. Get in touch whenever you need any assistance.

Try it now!

Calculate the price of your order

Total price:
$0.00

How it works?

Follow these simple steps to get your paper done

Homework Market

Place your order

Fill in the order form and provide all details of your assignment.

Homework Market

Proceed with the payment

Choose the payment system that suits you most.

Homework Market

Receive the final file

Once your paper is ready, we will email it to you.

HomeworkMarket Writing Services

No need to work on essay at night. Sleep tight, we will cover your back. We offer all kinds of essay writing services.

HomeworkMarket HomeworkMrket

Essays

Essay Writing Service

No matter what kind of academic paper you need and how urgent you need it, you are welcome to choose your academic level and the type of your paper at an affordable price. We take care of all your paper needs and give a 24/7 customer care support system.

HomeworkMarket HomeworkMarket

Admissions

Admission Essays

An admission essay is an essay or other written statement by a candidate, often a potential student enrolling in a college, university, or graduate school. You can be rest assurred that through our service we will write the best admission essay for you.

HomeworkMarket HomeworkMarket

Editing

Editing Support

Our academic writers and editors make the necessary changes to your paper so that it is polished. We also format your document by correctly quoting the sources and creating reference lists in the formats APA, Harvard, MLA, Chicago / Turabian.

HomeworkMarket HomeworkMarket

Revision

Revision Support

If you think your paper could be improved, you can request a review. In this case, your paper will be checked by the writer or assigned to an editor. You can use this option as many times as you see fit. This is free because we want you to be completely satisfied.