Getting a participant's data.

Back to Contents

If you are relying on a third party form manager like formsubmit, the sending data portion of this tutorial will not be completely relevant for you, but do it anyway (we will build off of it). Also, the other post-submission bits are still the same no matter how you get your data.

First, make sure you have:

A working build of the viewer
A text editor you like, preferably with syntax highlighting for HTML, JavaScript and PHP (The one used in the example)

(as of June 2020)

You will learn:

How to package data for transmission
How to handle errors in transmission
How to warn users of unsaved data
How to make a better debriefing page

Be aware that viewer inches and pixels are occasionally inaccurate if the user zooms the page
Click here to see how to read the scroll log
Click here to see how to read the click log (unused in the tutorial)
Click here to see how to read the shader log
The long time numbers are gotten with Date.now(), this is the milliseconds since 1-JAN-1970 (UTC),
if you are using this in 'merican, try:

_ - Your Local Time ( _ )
_ - UTC
The smaller time numbers are typically just milliseconds, log enteries and trial times are counting up from the viewer start time.
IP addresses aren't always accurate locations, but you can typically get an idea of a user's location from them with a lookup service like this.
- If you wish, you can add their timezone (in the page linked above, it is reported with the time value). This will give you an idea of what time of day they tried your experiment (eg, are they likely to be a night shift or day shift). Again though, this isn't always accurate.
  
  _
  This may not work on all browsers
  And the drop down is just there for ideas, you should always enter your timezones manually.
  If you have trouble, I found this list to work nicely.

For these code heavy tutorials, it is recommended to full screen the video and watch at 720p

Resources

The changed files for this step can be found here.

Proceed to learn how to use your server to alternate between trial orders, or force one user into a specific trial order.
OR
Proceed to learn how to use a third party form manager (required if you have a static web host which can't handle php, but not recommended otherwise).