Lab 3A: The Results Are In!

Lab 3A - The results are in!

Directions: Follow along with the slides and answer the questions in bold font in your journal.

Previously in class, you conducted an experiment to gauge how a stimulus affected people's perception of time.

– Some people were given a treatment, others were not.
In this lab, we'll use the data cycle to analyze the research question:

Does the stimulus your class chose change people's perception of time?

Write down two statistical questions that will help you answer the research question from the previous slide.
Then, export, upload, import your experiment data into RStudio.

– If you're having trouble coming up with good statistical questions, try loading the data and looking at the variables.

– Ask yourself, How would I use these variables to answer the research question?

Create appropriate plots to answer your statistical questions.

– Are there any outliers or unusual observations that require some cleaning before you can interpret your plots?
Calculate appropriate numerical summaries to answer your statistical questions.
Interpret your plots and summaries.

– Write down a few sentences with your interpretations.

Is it possible your initial results occurred by chance alone?

– Use repeated shuffling to determine how likely the typical difference between the two groups occurred by chance alone.

– Create a plot and use it to justify your answer.
What do you conclude about the research question?

– Write a report using the plots and analysis you conducted to answer the research question.

– Be sure to describe how you conducted your experiment.