Presentation timing with OSWeb

OmerBirka

Hello,

I'm trying to build an experiment in which each trial will present a random sequence of numbers (presented individually, each for ~500ms) until the participant makes a decision. I guess I should use inline_javascript, with a while expression, but I'm not sure how to make thee sketchpad update so it would show the next number in the sequence.

Another possible approach is to have new sketchpad with the next number replacing the former. This approach could work for presenting the numbers sequence, but in the long run I want to add other visual stimulus (other than the numbers) that would appear and last until the participant makes a decision, so I doubt this approach simplifies things.

I hope I made it clear enough. Let me know if I should elaborate more.

Thanks,

Omer

lvanderlinden

Hi @OmerBirka ,

Not sure whether I understand the design correctly, but doesn't it make sense to have a nested loop-sequence within the trial sequence, like so:

6847.osexp

If this is not what you're looking for, feel free to provide us with more information or upload your experiment here.

Cheers,

Lotje

OmerBirka

Hey Lotje,

Yes it does. I've simplified my initial design a bit and it works. Thanks!

lvanderlinden

Hi @OmerBirka , great to hear and thanks for getting back to us. :)