How does a pavlovia experiment generates the participant ID´s in the running mode?

Online experiments
1

Hi guys,

i am very new when it comes to psychopy and pavlovia. I already made up my experiment and uploaded it to pavlovia.org. In the pilot mode it works perfectly fine now but I am not sure if this is the same for the running mode.

I have a code component which puts id´s with an even id into one group and participants with an uneven id into another group.

This is the code: (javascript):

let teilnehmer_id = expInfo[‘participant’];
let letzte_ziffer = parseInt(teilnehmer_id.slice(-1));

if (letzte_ziffer % 2 === 0) {
gruppe = 0;
video_file = “res/BhramariPranayamaVideo.mp4”;
} else {
gruppe = 1;
video_file = “res/StillesSitzenVideo.mp4”;
}

Will this work in the running mode as well? How is the ID generated in the running mode? I didn´t find any informations about this online.

I will have roundabout 90 participants so I don´t want to put in the participant ID manually in every link.

I hope someone can help me. Thanks in advance!

2

Dear student,

The participant ID is generated via the field in Properties → Experiment info.

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image667×655 9.53 KB

And here is what this looks like in coder:

image
image536×181 5.19 KB

You can change that default configuration if you’d like.

Hopefully that answers your question!

Issac

3

If you would like equal numbers of odd and even participants, you could use one of my online tools.

4

Thank you wakecarter, that helps a lot! Have a nice day:)