- Create a new project, fill in all the details as normal.
- Set the number of assignments per HIT at 1.
- I like to require at least a 90% acceptance rate and 100 approved HITs.
- Replace the source code of the description with this code.
- Upload a csv file. Sample here.
The important line of the HIT code is <!--${filler}-->
which indicates to Amazon that you are going to provide a csv file that has a list of all the HITs to create, each with a different value for the variable filler
.
But these variables don't ever show up in the description of the HIT, because they are enclosed within HTML comments.
When you upload the file that has 1 column (header is filler) and N rows with some arbitrary values, Amazon creates a separate HIT for each N row. You are only charged a 20% fee if each of those HITs has fewer than 9 participants.