Timer for multiple stages

[Bret Sheeley]

Hi, LIONESS team.

I am trying to program an experiment in which participants are presented with grids of letters and asked to identify how many times a specific letter appears in each grid. Each letter-grid occupies its own stage in LIONESS. I want to allow participants 5 minutes to complete as many letter-search grids as possible. After 5 minutes, participants will auto-advance to the next part of the experiment. To prevent random guessing, participants are penalized 5 seconds for each incorrect answer that they answer, meaning they are unable to click the "Continue" button and proceed to the next stage (i.e., the next grid) for 5 seconds.

Two questions:

1. Is it possible to program a 5-minute timer that covers multiple stages in LIONESS and then auto-advances participants to the next part of the experiment when time is up?
2. Is it possible to disable the "Continue" button for 5 seconds if participants answer incorrectly? 

I have searched online for custom JS code to accomplish this but have so far come up short. I appreciate any help you can provide. Thank you!

[Lucas Molleman]

Hi Bret,

My guess is that your life would be much easier if you would program this in one stage. You can use a button that fires a JavaScript function that (1) checks whether the entry is correct; if no: (2a) disable the button for 5 sec; if yes (2b) writes the participant entries to the database, and (3) updates the grid. You can then use the auto-advance that is built into LIONESS. 

does this make sense?

Cheers, Lucas

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[Bret Sheeley]

Hi, Lucas.

Thanks so much for your quick and helpful response. Yes, that makes sense. I am comfortable completing step (1) that you listed, but do you have advice on how to execute step (2a) and (3)? Specifically, I don't know how to (2a) disable the button or (3) update to the next grid. Is there an online resource that I can consult to figure this out, or do you happen to know code that would complete these steps?

Thanks again for your helpful reply. I appreciate it.

Best regards,

Bret

[Lucas Molleman]

Hi Bret,

In the LIONESS repository you can search for "button click letter grid". Here I have made a quick prototype that should get you underway. Hope it's useful!

Cheers, Lucas

To view this discussion, visit https://groups.google.com/d/msgid/lioness-lab/2186f6bc-6978-40ce-824c-454ac7096279n%40googlegroups.com.

[Bret Sheeley]

Thank you, Lucas. I appreciate your advice. This is very helpful.