Psy325assignmentsweek 2 – assignment | PSY 325 Statistics for the Behavioral & Social Sciences | Ashford University

 

Chi-Square Data Analysis

[WLOs: 2, 5] [CLOs: 2, 3, 4, 5]

Prior to beginning work on this assignment, review Chapter 10 in your course textbook, pages 109 to 120 in Chapter 7 of the Jarman e-book, and the Week 2 Instructor Guidance. Also, review The Chi-Square Test: Often Used and More Often Misinterpreted and The Chi-Square Test of Independence articles Also, review the Two-Way Tables, Chi-Square: Lecture 11, Chi-Square Tests: Crash Course Statistics #29 (Links to an external site.), and Chi-Square Test for Association (Independence) | AP Statistics | Khan Academy (Links to an external site.) videos; and review the How to Chi-Square Test (Links to an external site.) and How to Interpret Chi-Squared (Links to an external site.) web articles. Also, complete the Week 2 learning activity and Week 2 weekly review.

Your instructor will post an announcement with the scenario and data set for your Week 2 assignment. For the calculations in this assignment, you may use either Excel or the free VassarStats: Website for Statistical Computation (Links to an external site.) program online. Instructions for performing a chi-square test of independence in Excel are included in Section 10.4 of the textbook, accompanied by a screencast demonstrating the process in the electronic version. Screencasts showing how to do a chi-square goodness-of-fit test and a chi-square test of independence in VassarStats are included in the Week 2 learning activity, which you may review at any time. For this test, you may prefer VassarStats (Links to an external site.) because it is more automated than Excel. You also have the option of calculating the chi-square manually but if you choose this option, you must show your work and explain all of the steps taken to solve for the chi-square value and to determine statistical significance.

In your paper, begin with a paragraph introducing the scenario and explaining why a chi-square test is needed for the situation. Then, address the following:

  • Identify which chi-square test you used and which program or procedure you used for the analysis.
  • Describe the procedure you used to calculate the chi-square.
    • If using VassarStats (Links to an external site.), copy and paste the data entry area and output into your paper. If using Excel, submit the Excel spreadsheet separately and mention in your paper that the spreadsheet is attached. If using hand calculations, include a table showing the observed and expected frequencies, along with the row and column totals and chi-square calculations.
  • Report the chi-square value, degrees of freedom, and the p
  • Explain how you determined the p Is the result statistically significant?
    • If the test is a chi-square test of independence with a statistically significant result, report the effect size using Cramér’s V.
  • Explain the meaning of the results in terms of the scenario.
    • Discuss any assumptions, limitations, and implications associated with the situation and analysis.
  • Summarize the main points of the paper in a concluding paragraph.

The Chi-Square Data Analysis paper

  • Must be two to three double-spaced pages in length (not including title and references pages) and formatted according to APA Style as outlined in the Ashford Writing Center’s APA Style (Links to an external site.)
  • Must include a separate title page with the following:
    • Title of paper
    • Student’s name
    • Course name and number
    • Instructor’s name
    • Date submitted

For further assistance with the formatting and the title page, refer to APA Formatting for Word 2013 (Links to an external site.).

Carefully review the Grading Rubric (Links to an external site.) for the criteria that will be used to evaluate your assignment.

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Waypoint Assignment Submission

The assignments in this course will be submitted to Waypoint.  Please refer to the instructions below to submit your assignment.

  1. Click on the Assignment Submission button below. The Waypoint “Student Dashboard” will open in a new browser window.
  2. Browse for your assignment.
  3. Click Upload.
  4. Confirm that your assignment was successfully submitted by viewing the appropriate week’s assignment tab in Waypoint.

For more detailed instructions, refer to the Waypoint Tutorial (Links to an external site.)Preview the document.

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