Editing Statistics and Statistical Programming (Winter 2017)/Problem Set: Week 1
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== Statistical Questions == | == Statistical Questions == | ||
=== | === Excercises from OpenIntro §1 === | ||
:'''Q1.''' Exercise 1.6 about identifying cases, variables, types, and research questions | :'''Q1.''' Exercise 1.6 about identifying cases, variables, types, and research questions | ||
:'''Q2.''' Exercise 1.12 about populations, samples, and generalizability | :'''Q2.''' Exercise 1.12 about populations, samples, and generalizability | ||
:'''Q3.''' Exercise 1.52 about means and medians from a histogram | :'''Q3.''' Exercise 1.52 about means and medians from a histogram | ||
:'''Q4.''' Exercise 1.56 about skewness and choosing appropriate statistics | :'''Q4.''' Exercise 1.56 about skewness and choosing appropriate statistics | ||
:''' | :'''Q6.''' Exercise 1.64 about selecting certain types of visualizations over others | ||
Several of these questions draw from Study 4 of the following paper (although I don't think it critical to look back at that paper to answer of the questions): | Several of these questions draw from Study 4 of the following paper (although I don't think it critical to look back at that paper to answer of the questions): | ||
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:Kramer, Adam D. I., Jamie E. Guillory, and Jeffrey T. Hancock. 2014. “Experimental Evidence of Massive-Scale Emotional Contagion through Social Networks.” ''Proceedings of the National Academy of Sciences'' 111(24):8788–90. [[http://www.pnas.org/content/111/24/8788.full Available through UW libraries]] | :Kramer, Adam D. I., Jamie E. Guillory, and Jeffrey T. Hancock. 2014. “Experimental Evidence of Massive-Scale Emotional Contagion through Social Networks.” ''Proceedings of the National Academy of Sciences'' 111(24):8788–90. [[http://www.pnas.org/content/111/24/8788.full Available through UW libraries]] | ||
Although there are major ethical concerns with the paper, and we'll be coming back and talking about it a number of times this quarter, | Although there are major ethical concerns with the paper, and we'll be coming back and talking about it a number of times this quarter, lets focus on the key issues of research design and the substantive takeaway. | ||
For this paper, answer each of these questions and be ready to cite parts of the paper that support each claim: | For this paper, answer each of these questions and be ready to cite parts of the paper that support each claim: | ||
:''' | :'''Q7.''' Identify identify (a) the cases, (b) the variables and their types, and (c) the main research question of this piece. | ||
:''' | :'''Q8.''' (a) What are the treatment and control groups in this study? (b) What type of sampling does the study use? (c) Describe the experimental manipulation. | ||
:''' | :'''Q9.''' Identify the studies (a) population of interest and (b) the sample used in the study. (c) Do you think that this study can be generalized from the sample to the population? | ||
:''' | :'''Q10.''' There is one figure in the paper (Figure 1). Walk us through the figure and explain what it represents and reflects. | ||
:''' | :'''Q11.''' (a) Summarize the results of the study. What is the size of the effect? What do you think the important takeaway from this paper should be? | ||
== Programming Challenges == | |||
Because this is our first week, there are no real programming challenges this week. What we have instead are some setup tasks you'll need to do before class. | |||
:'''PC1.''' Download and install R — You can do that from [https://cran.rstudio.com/ this webpage] where you will have to choose based on your operating system. | |||
:'''PC2.''' Download and install RStudio — Download and run the "installer" from the "Installers" sections of [https://www.rstudio.com/products/rstudio/download/ the RStudio download page]. You'll want to choose the one that is appropriate for your operating systems (e.g., Windows, Mac OSX, or GNU/Linux). | |||
:'''PC3.''' Get setup with git and Github — You should do two things before class. | |||
:* First, [https://github.com/join?source=button-pricing create an account on Github.com] | |||
:* Installing [https://desktop.github.com/ GitHub Desktop] which includes versions for Windows and Mac. If you use Linux, contact me. Completing the setup will involve logging in your Github account. |