nolach
commented
11 years ago Hi Thomas,
Thanks for asking an important question the present code does not address. If I were trying to embed this IAT into a larger survey, I would take the following into consideration:
Matching Subject Codes
To insure the code used in the larger survey matches that in the IAT, pass the subject ID as a GET variable to iat.php (e.g. index.php?code=xxxx). This value can be recovered using the location.search property. Then, change line 21 of iat.js to set the value of #subID to the participant code.
Linking Datasets
The process of linking data sets would vary with the implementation of the larger survey. Although I am not familiar with Qualtrics, I imagine it might be simpler to store the IAT data separately (identified by subject code) on your server. The IAT data could then be merged with the larger data set based on a match of subject codes.
For a more specific answer, I would need further details:
- What data do you want to link? Raw response times, or simply the IAT effect?
- What type of database do you use (MySQL, FileMaker, etc.)?
- Does the survey use the IAT effect in further manipulations (i.e. participants are asked different questions based on the magnitude of the effect size)?
If you have any more questions, feel free to ask!
thomasschubert
Hi there,
how have you been embedding this into larger surveys? I work with somebody who wants to embed this into a larger qualtrics survey. I imagine the best way would be to link out from qualtrics, open a new window, and load the iat in it. Then, the question would be how to link the datasets automatically. I looked into the code - the random number comes from initialize() in IAT.js. So perhaps one could change the code there so that it takes the number from the URL, e.g. something like www.server.com/IAT/index.php?id=1111 - and then submit this form automatically? have you done something like this in the past?
thanks, thomas