I'm trying to program an essay question so that the Continue button doesn't appear for 5 minutes; I'd like people to write a story for that long.

I've put the (d-300) parameter in the Essay question parameter box, but the timer is not working. The continue button never shows up.

Strangely, I have exactly the same parameter in an instruction question, which is the next question - and it works perfectly. Also note that I'm recording RTs for both questions.

So - why is the duration not working for the essay question? Are you not allowed to have two in a row? Does it not actually work for essay questions?
Has anyone else experienced this before?

Any suggestions would be great! I'm going to run the study Thursday!