social statistics, sociology assignment help task

social statistics, sociology assignment help

Order ID	53563633773
Type	Essay
Writer Level	Masters
Style	APA
Sources/References	4
Perfect Number of Pages to Order	5-10 Pages

Description/Paper Instructions

 

SOC 390: Social Statistics I
SPSS (50 points)

Instructions:For this portion of the exam, you will be provided with a dataset. Make sure you follow all of the directions for each question below (pay attention to details!). When you have completed all of the questions, submit your completed document to Blackboard. Remember to save your work as you go. Round your answers to 2 decimal places. Also, if you get a p-value that = .000, round to .001.

Data: Download/open the SPSS dataset, which is located in the Exam 3 folder: “EXAM 3SOC390 data”.

RESEARCH SCENARIO 1 [10 points]:
Hypothetically, I collected data on how much participants like statistics (variable name = like_stats) at the beginning of the semester using a scale of 0 = strongly disagree to 4 = strongly agree. After myinitial data collection, I implemented an intervention aimed at improving participants’ feelings regarding statistics. After the intervention, I measured the same participants with the same measure to get a posttest measure of how much participants like statistics (variable name = POST_like_stats).

Help me determine if pretest statistics liking significantly differs from posttest statistics liking. HINT: To avoid confusion regarding sign (+/-) of the observed value, subtract the posttest from the pretest (pretest-posttest) when entering your variables into the SPSS dialog box.

1a. Which of the following is the null hypothesis?Highlight or circle your answer. [.5 points]
a) H0: µpre = µpost
b) H1: µpre = µpost
c) H0: µpre? µpost
d) H1: µpre? µpost

1b. Although we think the intervention will improve ratings, we are going to use a non-directional research hypothesis. Which of the following is the alternative, or research, hypothesis? Highlight or circle your answer. [.5 points]
a) H0: Xpre = Xpost
b) H1: Xpre = Xpost
c) H0: Xpre?Xpost
d) H1: Xpre?Xpost

2. Which test is needed to answer this question? Highlight or circle your answer. [.5 point]
a) one-sample t-test
b) one way ANOVA
c) independent samples t-test
d) dependent samples t-test

3. Run the test in SPSS.
a. What was the t-statistic? _________ [1 point]
b. What were the confidence intervals? ________ [1 point]
c. What was the p-value? _______ [1 point]
d. PASTE YOUR SPSS OUTPUT HERE! [2 points]

4. Based on your SPSS analysis, what is your decision regarding the null (reject or fail to reject)? [.5 point]

5. Write up your results in APA format. Your write-up should include sample mean(s)/standard deviation(s), t-statistics, degrees of freedom, p-value, and a conclusion. (use the examples from lecture). [3 points]

RESEARCH SCENARIO 2 [10 points]:
I want to compare the mean Exam scores (Variable name = Exam_scores) between different sections of SOC390 (Variable name = Class). In this data set we have three classes (1= Miller, 2 = Field, 3= Smith). Using the SPSS data, conduct a One-way ANOVA where ‘Class’ is your factor and ‘Exam_scores’ is your dependent variable. For Post hoc tests, select Tukey. Under Options, select descriptives, homogeneity of variance test, and means plot.

6a. Which of the following is the null hypothesis?Highlight or circle your answer.[.5 points]
a) H0: µ1 = µ2 = µ3
b) H1: µ1 = µ2 = µ3
c) H0: µ1? µ2? µ3
d) H1: µ1? µ2? µ3

6b. Which of the following is the alternative, or research, hypothesis? Highlight or circle your answer. [.5 points]
a) H0: X1 = X2 = X3
b) H1: X1 = X2 = X3
c) H0: X1? X2? X3
d) H1: X1? X2? X3

7. PASTE YOUR SPSS OUTPUT BELOW [3 total points]
– Include the tables labeled ‘Descriptives’, ‘Test of Homogeneity of Variances’, ‘ANOVA’, ‘Multiple Comparisons’, and ‘Means Plots’

[PASTE OUTPUT HERE – Tip: if you are having trouble cutting/pasting, try pasting as an image]

8. Interpret:
a. Did the SOC390 sections have significantly different exam scores, in general (yes or no)? What is our conclusion regarding the null hypothesis (reject or fail to reject the null)? [1 point]

b. Which output table from above gives you the information to answer 8a (keep in mind I am only asking if the means differed in general)? Highlight or circle your answer. [.5 point]
a) ‘Descriptives’
b) ‘Test of Homogeneity of Variances’
c) ‘ANOVA’
d) ‘Multiple Comparisons’
e) ‘Means Plots’.

c. Using the ‘Multiple Comparisons’ table from your output above, answer the following and include the appropriate p-value for each (Sig.) to let me know you are not just guessing!

• Did Miller and Field significantly differ? [.5 point]

• Did Miller and Smith significantly differ? [.5 point]

• Did Smith and Field significantly differ? [.5 point]

9. Write up the results from this analysis using APA format. Make sure you include each group mean (and SD) exam score, the correct F stat with the correct degrees of freedom and p-value, decision regarding the null, and the follow-up comparisons (if necessary). Use the example in the SPSS ANOVA lecture to help guide you. [3 points]

RESEARCH SCENARIO 3 [10 points]:
Our dataset includes exam scores from women and men (see variable: sex; 0 = female, 1 = male). We want to test whether or not men and women scored the same on the (made up) exam (variable: Exam_scores).

10a. Which of the following is the null hypothesis?Highlight or circle your answer. [.5 points]
a) H0: µ1 = µ2
b) H1: µ1 = µ2
c) H0: µ1? µ2
d) H1: µ1? µ2

10b. Which of the following is the alternative, or research, hypothesis? Highlight or circle your answer. [.5 points]
a) H0: X1 = X2
b) H1: X1 = X2
c) H0: X1? X2
d) H1: X1? X2

11. Which test is needed to answer this question? Highlight or circle your answer. [.5 point]
a) one-sample t-test
b) one way ANOVA
c) independent samples t-test
d) dependent samples t-test

12. Run the test in SPSS.
a. What was the t-statistic*? _________ [1 point]
*I did not anticipate Levene’s test being significant on this variable. Go ahead and report the statistics for 12a-c using the ‘Equal variances assumed’ line.
b. What were the confidence intervals? ________ [1 point]
c. What was the p-value? _______ [1 point]
d. PASTE YOUR SPSS OUTPUT HERE! [2 points]

13. Based on your SPSS analysis, what is your decision regarding the null (reject or fail to reject)? [.5 point]

14. Write up your results in APA format. Your write-up should include sample mean(s)/standard deviation(s), t-statistics, degrees of freedom, p-value, and a conclusion. (use the examples from lecture). [3 points]

RESEARCH SCENARIO 4 [10 points]:
I asked students from SOC390 several questions about their feelings towards statistics. I am interested in how these variables are related to each other. Using the dataset provided, calculate the correlations between the following 5 variables:
• like_stats,
• anxious,
• expect_well,
• try_well,
• dont_do_well.
For this question, analyze all of the correlations at once (you should get a correlation matrix for output). Be sure to also select ‘Means and standard deviations’ when running your correlation analysis.

15. Paste your output below. You should include the ‘Descriptive Statistics’ table and the ‘Correlations’ table. [4 points]

[PASTE OUTPUT HERE]

16. Looking at your correlation matrix above, tell me which two variables were the most STRONGLY correlated. Include the correlation, degrees of freedom, and the p-value (Sig.) for the pair you choose. [2 points]

17. What is the correlation between ‘like_stats’ and ‘anxious’? Is it significant and in what direction? Write up your interpretation/conclusion using APA format. Be sure to include the correlation, degrees of freedom, and p-value [4 points]

RESEARCH SCENARIO 5 [10 points]:
In this section you will interpret output that is provided (you do NOT need to run anything for this scenario).

I am interested in testing whether the section of SOC390 that a participant was in (Variable name = Class; 1= Miller, 2 = Field, 3= Smith) influences their exam scores (Variable name = exam_scores). I also think that gender might also influence exam scores (Variable name = Gender; 0 = female, 1 = male). To test this, I conducted a two-way ANOVA. There is a lot of output associated with a two-way ANOVA – we are only going to focus on the output below.

18. What are the two factors in this example? How many levels are on each factor?
[2 points]

19. What is the dependent variable? [2 points]

20. In the output above, there are two main effects and an interaction effect being tested. First: assuming ? = .05, what are the conclusions for these tests (significant or not significant)? Second: For each, provide the F statistic including degrees of freedom and p-value. [6 points]

Fclass(__, ___) = ______, p = _____? Significant or not significant? ______________

Fgender(__, ___) = ______, p = _____? Significant or not significant? ______________

FclassXgender(__, ___) = ______, p = _____? Significant or not significant? ______________

 

RUBRIC QUALITY OF RESPONSE NO RESPONSE POOR / UNSATISFACTORY SATISFACTORY GOOD EXCELLENT Content (worth a maximum of 50% of the total points) Zero points:  Student failed to submit the final paper. 20 points out of 50:  The essay illustrates poor understanding of the relevant material by failing to address or incorrectly addressing the relevant content; failing to identify or inaccurately explaining/defining key concepts/ideas; ignoring or incorrectly explaining key points/claims and the reasoning behind them; and/or incorrectly or inappropriately using terminology; and elements of the response are lacking. 30 points out of 50:  The essay illustrates a rudimentary understanding of the relevant material by mentioning but not full explaining the relevant content; identifying some of the key concepts/ideas though failing to fully or accurately explain many of them; using terminology, though sometimes inaccurately or inappropriately; and/or incorporating some key claims/points but failing to explain the reasoning behind them or doing so inaccurately.  Elements of the required response may also be lacking. 40 points out of 50:  The essay illustrates solid understanding of the relevant material by correctly addressing most of the relevant content; identifying and explaining most of the key concepts/ideas; using correct terminology; explaining the reasoning behind most of the key points/claims; and/or where necessary or useful, substantiating some points with accurate examples.  The answer is complete. 50 points:  The essay illustrates exemplary understanding of the relevant material by thoroughly and correctly addressing the relevant content; identifying and explaining all of the key concepts/ideas; using correct terminology explaining the reasoning behind key points/claims and substantiating, as necessary/useful, points with several accurate and illuminating examples.  No aspects of the required answer are missing. Use of Sources (worth a maximum of 20% of the total points). Zero points:  Student failed to include citations and/or references. Or the student failed to submit a final paper. 5 out 20 points:  Sources are seldom cited to support statements and/or format of citations are not recognizable as APA 6th Edition format. There are major errors in the formation of the references and citations. And/or there is a major reliance on highly questionable. The Student fails to provide an adequate synthesis of research collected for the paper. 10 out 20 points:  References to scholarly sources are occasionally given; many statements seem unsubstantiated.  Frequent errors in APA 6th Edition format, leaving the reader confused about the source of the information. There are significant errors of the formation in the references and citations. And/or there is a significant use of highly questionable sources. 15 out 20 points:  Credible Scholarly sources are used effectively support claims and are, for the most part, clear and fairly represented.  APA 6th Edition is used with only a few minor errors.  There are minor errors in reference and/or citations. And/or there is some use of questionable sources. 20 points:  Credible scholarly sources are used to give compelling evidence to support claims and are clearly and fairly represented.  APA 6th Edition format is used accurately and consistently. The student uses above the maximum required references in the development of the assignment. Grammar (worth maximum of 20% of total points) Zero points:  Student failed to submit the final paper. 5 points out of 20:  The paper does not communicate ideas/points clearly due to inappropriate use of terminology and vague language; thoughts and sentences are disjointed or incomprehensible; organization lacking; and/or numerous grammatical, spelling/punctuation errors  10 points out 20:  The paper is often unclear and difficult to follow due to some inappropriate terminology and/or vague language; ideas may be fragmented, wandering and/or repetitive; poor organization; and/or some grammatical, spelling, punctuation errors 15 points out of 20:  The paper is mostly clear as a result of appropriate use of terminology and minimal vagueness; no tangents and no repetition; fairly good organization; almost perfect grammar, spelling, punctuation, and word usage. 20 points:  The paper is clear, concise, and a pleasure to read as a result of appropriate and precise use of terminology; total coherence of thoughts and presentation and logical organization; and the essay is error free. Structure of the Paper (worth 10% of total points) Zero points:  Student failed to submit the final paper. 3 points out of 10: Student needs to develop better formatting skills. The paper omits significant structural elements required for and APA 6th edition paper. Formatting of the paper has major flaws. The paper does not conform to APA 6th edition requirements whatsoever. 5 points out of 10: Appearance of final paper demonstrates the student’s limited ability to format the paper. There are significant errors in formatting and/or the total omission of major components of an APA 6th edition paper. They can include the omission of the cover page, abstract, and page numbers. Additionally the page has major formatting issues with spacing or paragraph formation. Font size might not conform to size requirements.  The student also significantly writes too large or too short of and paper 7 points out of 10: Research paper presents an above-average use of formatting skills. The paper has slight errors within the paper. This can include small errors or omissions with the cover page, abstract, page number, and headers. There could be also slight formatting issues with the document spacing or the font Additionally the paper might slightly exceed or undershoot the specific number of required written pages for the assignment. 10 points: Student provides a high-caliber, formatted paper. This includes an APA 6th edition cover page, abstract, page number, headers and is double spaced in 12’ Times Roman Font. Additionally, the paper conforms to the specific number of required written pages and neither goes over or under the specified length of the paper.
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