Which measure of central tendency is most appropriate based on the data type?
Descriptive Statistics Data Analysis
Prior to beginning work on this assignment, review Chapter 1 and Chapter 2 in your course textbook, Chapter 3 in the Jarman e-book, the Week 1 Instructor Guidance, and review the Module 2: Describing Data video and the Khan Academy video on Interquartile Range (IQR) (Links to an external site.). Also, complete the Week 1 learning activity and Week 1 weekly review.
W1.A.Mean Median Mode.png
This exercise requires the use of a descriptive statistics calculator. You can find this tool in some versions of Excel (as part of the Analysis ToolPak) or you can use one of the many free online descriptive calculators such as the Descriptive Statistics Calculator (Links to an external site.) by Calculator Soup.
Your instructor will post an announcement with the data set for your Week 1 assignment.
First, use either Excel or the Calculator Soup descriptive statistics calculator to calculate the descriptive statistics for the given data set. This is explained in Chapter 1 of your course text.
You should get an output similar to the image in Figure 1.3 from your textbook. This output must contain the following values: mean, standard error, median, mode, standard deviation, sample variance, kurtosis, skewness, range, minimum, maximum, sum, and count.
Next, begin writing your paper by reporting your results for each of the values listed above.
Include the data set, the output from the analysis, and the answers to the following questions:
Evaluate the measures of central tendency. Address the following when completing this component:
Which measure of central tendency is most appropriate based on the data type?
Are the mean, median, and mode close to the same value? If not, what does this tell you about the numbers in the set?
Identify any mode(s) in the data set. Is there a mode at all? Is there more than one mode?
Calculate manually the interquartile range and the values of Q1 and Q3. (It is important to calculate this manually because the interquartile range and quartiles output from Calculator Soup might not be accurate.) Address the following when completing this component:
Test to see if there are any outliers in the set. If so, which number(s)?
Which method from Section 2.4 of the text did you first use to check for outliers?
Now try the other method from Section 2.4 of the text. Do you come to the same conclusion about outliers in the data set?
Explain which descriptive statistic you think best summarizes this set of numbers and why.
Choose three of the descriptive statistics that you feel best represent this data set. Why were they chosen?
The Descriptive Statistics Data Analysis assignment
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 Writing Center’s APA Style (Links to an external site.) resource.
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 Microsoft Word (Links to an external site.).
Must include an introduction and conclusion paragraph. Your introduction paragraph needs to end with a clear statement that indicates the purpose of your paper, to report and explain your analysis of the data set.
For assistance on writing Introductions & Conclusions (Links to an external site.), refer to the Writing Center resources.
Must use the course text and Excel or the Descriptive Statistics Calculator (Links to an external site.).
Must document any information used from sources in APA Style as outlined in the Writing Center’s APA: Citing Within Your Paper (Links to an external site.) guide.
PSY325 Statistics for the Behavioral & Social Sciences
Week 2 Assignment
Chi-Square Data Analysis
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 Writing Center’s APA Style (Links to an external site.) resource.
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 Microsoft Word (Links to an external site.).
Must include an introduction and conclusion paragraph. Your introduction paragraph needs to end with a clear statement that indicates the purpose of your paper, to report and explain your analysis of the scenario and data set.
For assistance on writing Introductions & Conclusions (Links to an external site.), refer to the Writing Center resources.
Must use the course text; and Excel, VassarStats, or detailed documentation of hand calculations. Refer to Tables, Images, & Appendices (Links to an external site.) for assistance with formatting data and results tables.
Must document any information used from sources in APA Style as outlined in the Writing Center’s APA: Citing Within Your Paper (Links to an external site.) guide.
Must include a separate references page that is formatted according to APA Style as outlined in the Writing Center. See the APA: Formatting Your References List (Links to an external site.) resource in the Writing Center for specifications.
PSY325 Statistics for the Behavioral & Social Sciences
Week 3 Assignment
Inferential Statistics Article Critique
Prior to beginning work on this assignment, review the assigned readings and the instructor guidance for the week, complete the learning activity, read the Writing Center resource Writing an Article Critique (Links to an external site.), view the University of Arizona Global Campus Library tutorial How to Read a Scholarly Article (Links to an external site.), and review the required video Test statistics: Crash Course statistics #26 (Links to an external site.). Your instructor will post an announcement with the reference for the article to be critiqued in this assignment. Read the article assigned by your instructor and identify the research questions and/or hypotheses as they are stated. Consider the following questions: What are the variables (sample sizes, population, treatments, etc.)? What are the inferential statistics used in this article? Were the proper steps of hypothesis testing followed?
Your article critique paper must
Determine what question(s) the authors are trying to answer by doing this research, the hypothesis being tested, and the concepts that were applied in this process.
Evaluate the article and critique the statistical analysis employed in the study.
Identify the specific statistical tests used. Were the tests appropriate for the situation and type of data?
Would you have included more and/or different variables? Explain your answer.
Examine the results, assumptions, interpretations, and limitations of the statistical study.
Interpret the findings of the author(s) using statistical concepts.
What would you have done differently? Why?
Discuss how either the statistical test(s) used in this study or the findings of this research might be useful in your future career.
The Inferential Statistics Article Critique assignment
Must be three to four double-spaced pages in length (not including title and references pages) and formatted according to APA Style as outlined in the Writing Center’s APA Style (Links to an external site.) resource.
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 Microsoft Word (Links to an external site.).
Must utilize academic voice. See the Academic Voice (Links to an external site.) resource for additional guidance.
Must include an introduction and conclusion paragraph. Your introduction paragraph needs to end with a clear statement that indicates the purpose of your paper, to critique the assigned research study article.
For assistance on writing Introductions & Conclusions (Links to an external site.), refer to the Writing Center resources.
Must use the assigned article in addition to the course text. Additional sources are optional. You may choose to include a peer-reviewed journal article about the research design or the data analysis method used in the study.
The Scholarly, Peer-Reviewed, and Other Credible Sources (Links to an external site.) table offers additional guidance on appropriate source types. If you have questions about whether a specific source is appropriate for this assignment, please contact your instructor. Your instructor has the final say about the appropriateness of a specific source for a particular assignment.
To assist you in completing the research required for this assignment, view the University of Arizona Global Campus Library Quick ‘n’ Dirty (Links to an external site.) tutorial, which introduces the University of Arizona Global Campus Library and the research process, and provides some library search tips.
Must document any information used from sources in APA Style as outlined in the Writing Center’s APA: Citing Within Your Paper (Links to an external site.) guide.
Must include a separate references page that is formatted according to APA Style as outlined in the Writing Center. See the APA: Formatting Your References List (Links to an external site.) resource in the Writing Center for specifications.
PSY325 Statistics for the Behavioral & Social Sciences
Week 4 Assignment
ANOVA Interpretation Exercise
Prior to beginning work on this assignment, read the scenario and ANOVA results provided in an announcement by your instructor and the Analysis of Variance (ANOVA) and Non-Normal Data: Is ANOVA Still a Valid Option? articles, review the required chapters of the Tanner textbook and the Jarman e-book, and watch the One-Way ANOVA video. In your paper, identify the research question and the hypothesis being tested in the assigned scenario. Consider the following questions: What are the independent and dependent variables, sample size, treatments, etcetera? What type of ANOVA was used in this scenario? What do the results mean in statistical and practical terms?
In your paper,
Determine what question(s) the researchers are trying to answer by doing this research.
Determine the hypotheses being tested. Is the alternative hypothesis directional or nondirectional?
Identify the independent variable(s), the dependent variable, and the specific type of ANOVA used.
Determine the sample size and the number of groups from information given in the ANOVA table.
Discuss briefly the assumptions and limitations that apply to ANOVA.
Interpret the ANOVA results in terms of statistical significance and in relation to the research question.
The ANOVA Interpretation Exercise assignment
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 Writing Center’s APA Style (Links to an external site.) resource.
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 Microsoft Word (Links to an external site.).
Must utilize academic voice. See the Academic Voice (Links to an external site.) resource for additional guidance.
Must use the course text and document any information used from sources in APA Style as outlined in the Writing Center’s APA: Citing Within Your Paper (Links to an external site.) guide.
Must include a separate references page that is formatted according to APA Style as outlined in the Writing Center. See the APA: Formatting Your References List (Links to an external site.) resource in the Writing Center for specifications.
PSY325 Statistics for the Behavioral & Social Sciences
Week 5 Assignment
In this second portion of the Final Exam, you will critically evaluate a quantitative research study on a social science topic. Your instructor will post an announcement with the reference for the article assigned for the exam. The study will be from a peer-reviewed journal and published within the last 10 years.
In the body of your critique, describe the statistical approaches used, the variables included, the hypothesis(es) proposed, and the interpretation of the results. In your conclusion, suggest other statistical approaches that could have been used and, if appropriate, suggest alternative interpretations of the results. This process will allow you to apply the concepts learned throughout the course in the interpretation of actual scientific research.
Your critique must include the following sections and information:
Introduction:
This section will introduce the assigned peer-reviewed quantitative study.
Identify clearly the research questions and/or hypothesis(es) as well as the purpose of the study.
Methods:
Describe the procedures and methods of data collection, measures/instruments used, the participants and how they were selected, and the statistical techniques used.
Results:
Summarize in this section the results presented in the study.
Discussion:
Evaluate the efficacy of the research study by discussing the following:
Address the strengths, weaknesses, and limitations of the study and suggest future research directions.
Include additional forms of statistical analyses as part of the suggestions for future research.
Conclusion:
Summarize the main points of your evaluation of the study.
Explain how the statistical test used in the study could be applied to your future career. Give one example.
Discuss how your ability to critique quantitative research could impact your future career.
The Final Exam Part 2 paper
Must be three to four double-spaced pages in length (not including title and references pages) and formatted according to APA Style as outlined in the Writing Center’s APA Style (Links to an external site.) resource.
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 Microsoft Word (Links to an external site.).
Must utilize academic voice. See the Academic Voice (Links to an external site.) resource for additional guidance.
Must include an introduction and a conclusion paragraph that summarizes your critical evaluation.
For assistance on writing Introductions & Conclusions (Links to an external site.), refer to the Writing Center resources.
Must use the quantitative research study assigned by your instructor. It is strongly recommended that you also use either the textbook or a peer-reviewed article about the statistical test(s) used by the researchers, to support your evaluation of the study.
You may find the Writing Center resource Action Words in Academic Writing (Links to an external site.) helpful in understanding the requirements of the assignment.
The Scholarly, Peer-Reviewed, and Other Credible Sources (Links to an external site.) table offers additional guidance on appropriate source types. If you have questions about whether a specific source is appropriate for this assignment, please contact your instructor. Your instructor has the final say about the appropriateness of a specific source for a particular assignment.
To assist you in completing the research required for this assignment, view the University of Arizona Global Campus Library Quick ‘n’ Dirty (Links to an external site.) tutorial, which introduces the University of Arizona Global Campus Library and the research process, and provides some library search tips.
Must document any information used from sources in APA Style as outlined in the Writing Center’s APA: Citing Within Your Paper (Links to an external site.) guide.
Must include a separate references page that is formatted according to APA Style as outlined in the Writing Center. See the APA: Formatting Your References List (Links to an external site.) resource in the Writing Center for specifications.
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