I’m recruiting participants on Prolific and running a repeated measures experiment where they have to rate different images. However, because each rating task is timed some participants don’t respond to the task before it moves on to the next image; in some case, these participants get to the end of the experiment and restart it in other to ‘correct’ their ratings.
I would like to limit participants to just one trial. Is there a way to do this? Thanks!
Just thought to add how I implemented this for anyone in the future with the same question. I created a new Dictionary record in the Shelf with the Key titled completed_participants and selected the particular experiment in the Scope.
Then I added a code block in the experiment with the code type as JS with the following code: