November 23, 2015
We recently ran a user study with 25 participants, who were asked to watch the following videos and answer survey questions based on their observations. These videos (also available as a YouTube playlist) can be viewed as a general introduction to Sketch-n-Sketch.
The primary purpose of the study was to evaluate the question: "Are direct manipulation heuristics [in Sketch-n-Sketch] better or worse than simply providing a slider for every constant in the program?" To help answer this question, Video 5 provides side-by-side comparisons of performing several tasks in Sketch-n-Sketch using different features. See Section 7 of this technical report for details about the survey and results.
NOTE: Several videos below have Recap slides at the end. The videos shown during the user study did not contain these Recaps.