My solution for IATs has been to use array-text questions with JavaScript to present the terms and record the results. As this is all client-side, there is no noticeable lag.
Here's a screenshot of the concept (the results array would, of course, be hidden in a live survey):
[File Attachment: iat_1.png]
Here's a screenshot of the concept (the results array would, of course, be hidden in a live survey):
[File Attachment: iat_1.png]