This is an example of the web-based data collection instrument developed for and used in the pediatric nausea study by A. Baxter, et al.
Operation
The application presents a random series of trials. After hitting start, click on the picture and drag up and down using the mouse to select the face you feel best represents the indicated percentage target. Click on OK when satisfied. Repeat until the "all done" message appears (10 trials in this demo).Note that no data is being collected now. This is for demonstration purposes only.