RSM801 Final Project
- Please be sure to create a cover page so I can keep track of who submitted the document (include name, course number and instructor)
- Read each question FULLY and CAREFULLY before answering.
- Use your time well – look over the assignment before starting and develop a plan. If you are stuck on a problem, move on and come back to it later.
- If completely stuck, you may ask me for guidance. I will provide hints or steps for certain parts of the question, but no credit will be given for those steps. Use this option sparingly.
- Refer to course materials such as your textbook from Quant I or the e-book in the classroom for review of statistical concepts (e.g., t-tests, ANOVAs, correlation, regression) and descriptive statistics. The software guides and instructional videos in the resources folder can help with technical execution.
- Ask questions if you are unsure. While I cannot give direct answers, I may provide useful clarifications.
Instructions
Open “Week7_RSM801” data.
About these data:
Roy Baumeister and his colleagues studied self-regulation. In other words, they ask why don’t we eat all of the tasty tidbits we encounter, attend parties when we should be studying, and have sex with every attractive potential partner who crosses our path? In short, how do we manage to forgo temptation? An exploration of (fictitious) data regarding these questions will comprise the bulk of the final lab exam.
The data set you opened represents scores of 800 recent college graduates who participated in a study. First, participants were asked to control their emotions while watching a very sad movie and then completed challenging set of brain teasers. One week later, participants returned to the lab and again watched a sad movie. This time, they were not asked to control their emotions and completed a different (but equally challenging) set of brain teasers. In both cases, the researchers measured how much participants persisted at the difficult brain teasers. The variables in this data set are:
| SUBJECT | Unique subject identifier from 1-800 |
| PERSONALITY | Personality Type (0 = Introvert; 1 = Extrovert) |
| CTRL_PER | Persistence after watching a sad movie and being asked to control emotions (1-10 scale; higher numbers indicate greater persistence). |
| NO_CTRL_PER | Persistence after watching a sad movie and NOT being asked to control emotions (1-10 scale; higher numbers indicate greater persistence). |
| NEED_CTRL | Self-report of need for control in the environment, measured two months before participating in the study (1-5 scale; higher numbers indicate greater need for control over one’s environment) |
| JOB | First job or activity following college graduation (0 = Public service job; 1 = Graduate school; 2 = Travel; 3 = Private sector job) |
- Outliers (6 points)
Create a new variable in SPSS or Jamovi that represents the z-score of persistence on brain teasers after being asked to control emotions (CTRL_PER). Analyze the data for outliers. Write up your conclusion including:
- Identify potential outliers, including relevant output and writing a brief justification for whether or not these are true outliers. Be sure to include a figure. [4 points]
- Justify whether any potential outliers should be kept, removed, or transformed. Be sure not to remove or transform outliers, simply report what you would do based on this analysis. [2 points]
- Inferential Statistics (8 points)
Is self-reported need to control one’s environment (NEED_CTRL) associated with persistence scores after watching a sad movie without emotion control (NO_CTRL_PER)?
- What statistical test would you conduct? Explain your reasoning. [2 points]
- Run the test in SPSS or Jamovi. Paste your output into the document. [2 points]
- Write up your findings as if reporting them in a journal article, following APA guidelines. [4 points]
- Inferential Statistics (9 points)
Do introverts and extroverts differ in their need to control their environment?
- What statistical test would you conduct? Explain your reasoning. [2 points]
- Run the test in SPSS or Jamovi. Paste your output into the document. [2 points]
- Write up your findings as if reporting them in a journal article, following APA guidelines. [5 points]
- Job Plans and Percentages (4 points)
- Create a frequency table in SPSS or Jamovi showing how many participants pursue each job/activity after graduation. Paste the table into your Word document. [2 points]
- Calculate and report the percentage of participants who plan to travel after graduation. [2 points]
- Inferential Statistics (14 points)
Does persistence after watching a sad movie and being asked to control emotions vary by job plans?
- What statistical test would you conduct? Explain your reasoning. [2 points]
- Run the test in SPSS or Jamovi. Paste your output into the document. [2 points]
- Include a figure to illustrate the results. Describe the trends observed. [3 points]
- Write up your findings as if reporting them in a journal article, following APA guidelines. [7 points]
- Distribution of Need for Control (7 points)
Determine whether Need for Control is approximately normally distributed. [3 points]
- Provide statistical evidence.
- Include a figure as visual evidence and describe what you see.
- Based on the evidence, provide your conclusion about whether need for control can be treated as a normally distributed variable.
Report the following descriptive statistics for Need for Control [4 points]
- Mean
- Median
- Mode
- Variance
- Sample size (n)
- Interpreting Inferential Statistics (9 points)
A group of psychologists was interested in what kind of humor people find funny. They randomly assigned people to read
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