Homework 9 - Visualizing results

Overview: By this point we’ve now collected the data from our perceptual experiment, but we still need to analyze and present it! In this assignment you’ll present the conclusions of the experiment that you conducted in homework 7.

Requirements:

• Collate the data collected for homework 7 into an easily accessible CSV or equivalent file. Report the basic statistics of your results.

  • For statistics you should report the number of questions, the number of responses (observations) and the mean/mode (if relevant) for each question.

• Visualize the distribution of responses to each question.

  • Depending on the form and number of answers this could be a bar chart, histogram, kernel density estimate or even a qualitative visualization, such as a word cloud. Choose the most relevant form for your study.

  • Make sure it is easy and intuitive to compare answers for different questions if relevant. For example, if your question asked participants to estimate some quantity in two different types of visualizations, overlayed histograms of the response distributions might be appropriate.

• Perform a relevant statistical test(s) to support your conclusions for the study.

  • For example, if you are comparing estimation performance for two different aesthetic mappings, you might consider a paired hypothesis test, with the null hypothesis that there is no difference in performance.

  • If you’re unsure what type of test might be relevant, please talk to the instructor.

• Create a single visualization that summarizes the most important results from your experiment and write a short paragraph explaining the conclusions of the study and any recommendations you would make based on these conclusions.

  • Make sure this visualization accurately communicates the uncertainty in your results.

You should follow the standard instructions for submitting this assignment on Canvas.