How to daisy-chain from Sona > Pavlovia > Gorilla preserving Sona id

[imogen]

My study directs participants from Sona to Pavlovia for the experiment and then to Gorilla for surveys. In the onward URL field in the online tab of the settings in psychopy I have included the following [gorilla link]?external_id=participant but this just fills the Gorilla public id with the word ‘participant’ and not the Sona/Pavlovia participant id itself which is what I need for combining data. Does anyone know how I should change this so that the Sona id carries all the way through to Gorilla?

[wakecarter]

Please take a look here

Wakefield's Daily Tips

Daisy Chaining Daisy chaining means going from one web application to another in a single participant session. It normally requires passing the values of one or more variables from one app. to the next so that the data can be matched. There are two aspects to consider. The first is sending values TO Pavlovia. I highly recommend that you send a value for participant (without changing the spelling or capitalisation) since this value will start the data file and log file names. A column for sessi…

[imogen]

Hi thanks so much for responding to my query
based on the advice for the other platforms, I changed to onward URL in Psychopy settings to [GorillaURL]?external_id=" + expInfo[‘participant’] but it still does not seem to work- the Gorilla PublicID is simply recorded as "expInfo[‘participant’] rather than the Sona/Pavlovia id number which I was hoping for - if you have any thoughts on why this is, I would be really grateful

[wakecarter]

@imogen

[GorillaURL]?external_id=" + expInfo[‘participant’]

Please show a screenshot. It should be $"[GorillaURL]?external_id=" + expInfo['participant']