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In this example, you have tested how two different tutorials affect one’s ability to use an application. You’ve recruited subjects and randomly assigned each to either Tutorial_A or Tutorial_B. After completing their designated tutorial, they perform a task in the application, and you time how long it takes them.
## A summary of this experiment data
* This is a between subject experiment.
* Independent variable: **tutorial** (2 conditions - A and B)
* Dependent variable: **completion_time** (continuous variable measured in seconds)
## What you need to do
1. Download a CSV dataset from http://steveh.co/public/simple_effect_examples/data/
1. Read the data into R.
1. Follow the simple effect size guide to understand the performance differences following the two different tutorials.
1. Which tutorial yeilds faster performance (lower completion time)? How reliable is that difference?