assignment 1 psych300

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Washington University in St Louis *

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300

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Psychology

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Apr 3, 2024

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docx

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Student ID: For this assignment, you will work in the file called “MA1-Descriptives (EAMMI data)” Part 1: Run the analyses. 1. Open the .csv file in JASP, then perform the descriptive analyses just like we did in class. a. Note: If you cannot get the .csv file to open in JASP, then use the other version I posted on Canvas that ends with .JASP 2. Get descriptive stats for the “mindful_average” and “swb_average” variables, as well as for “age” and “edu”. Get mean, median, mode, standard deviation, min, max, variance 3. Produce histograms (i.e., “Distribution plots” in JASP) for these variables Part 2: Answer the prompts below using the data from JASP. Note: In the prompts below, the “mindfulness” and “swb” variables are the “average” variables indicated above. Round to 2 decimals and practice labeling all your answers (e.g. M for mean, SD for standard deviation). 1. Age: Report the mean, standard deviation, and range of age. a. M(age): 20.93 b. SD(age): 4.52 c. Range(age): 43 2. Age: Report total N (Valid + Missing) and separately report number of missing values for age a. N: 2987; missing: 989 3. What is the average for education, as reported by JASP? a. M(edu): 2.37 4. Why is the average for education not a valid number to interpret? (hint: review the codebook and think about what this variable is telling you) a. The variable for education acts more as a nominal variable to describe education level, so the only statistic we can use for it is mode. 5. What is the min. value for subjective well-being (swb)? a. Min(swb): 1.00 6. What is the max. value for mindfulness? a. Max(mindfulness): 6.00 7. Report the means of mindfulness and of swb a. M(mindfulness): 3.71 b. M(swb): 4.47

8. Report the standard deviations of mindfulness and swb a. SD(mindfulness): 0.84 b. SD(swb): 1.33 9. What measure of standard deviation is JASP reporting here? Use the name and describe it. a. JASP is reporting sample standard deviation, S. This statistic describes the variability of the sample without estimating the population variability. Part 3: Paste your JASP output below (taking a screenshot will work). MAKE SURE TO TYPE IN YOUR STUDENT ID INTO ONE OF THE “NOTES” BOXES (e.g., under the Descriptives output table). If you’re not sure what I mean by that, watch the demo video from the 1 st JASP training lesson:

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