Millisecond Forums » Millisecond Forums » Inquisit 6 » Redirecting participants to different websites, chosen within the experiment

Redirecting participants to different websites, chosen within the experiment

Sercan — Mon, 20 Oct 2025 16:29:56 GMT

Hello! We will receive participants from several different participant pools, so we need to redirect them to different sites afterwards to give them credit. However, our logs show that everyone is being redirected to the same page: Prolific, with a custom completion code added to the end (i.e., not "INITIALIZED" like in the code). Could you show us how we can ensure that the script can dynamically and safely set the finish page? We already confirmed that "parameters.finishpagetype" is being set correctly.

[code]Full Experiment

<defaults>
/ minimumversion = "6.0.0.0"
/ finishpage = "https://app.prolific.co/submissions/complete?cc=INITIALIZED"
</defaults>

<batch fullexperiment>
/ file = "infopage.iqx"
/ file = "DelayAAT.iqx"
/ file = "debriefing.iqx"

/ onscriptend = [
    // set language
    if(batch.fullexperiment.currentscript=="infopage.iqx"){
        parameters.finishpagetype=values.finishpagetype;
    }

    //////////////////////
    // Completion codes //
    //////////////////////
    if(parameters.finishpagetype=="Prolific"){
        defaults.finishpage = "https://app.prolific.co/submissions/complete?cc=<%parameters.completioncode%>";
    }

    if(parameters.finishpagetype == "SalzburgUni"){
        defaults.finishpage = "https://XXXXX.sona-systems.com/webstudy_credit.aspx?experiment_id=XXXXX&credit_token=<%parameters.completioncode%>&survey_code=<%script.groupid%>";
    }

    if(parameters.finishpagetype=="Other"){
        if(values.completioncode == values.correctcc){
            defaults.finishpage="https://XXXXX?lang=en";
        }else{
            defaults.finishpage="https://google.com/";
        }
    }
]
</batch>

##############
# completion #

<values>
/ correctcc = "XXXXX"
/ screenoutcc = "XXXXX"
/ rejectcc = "XXXXX"
/ finishpagetype = 0
</values>

<parameters fullexperiment>
/ completioncode = "INCOMPLETE"
/ finishpagetype = "indeterminate"
</parameters>[/code]

RE: Redirecting participants to different websites, chosen within the experiment

Dave — Mon, 20 Oct 2025 16:29:56 GMT

+x[quote]

[b]Sercan - 10/20/2025[/b]
+x[quote]

[b]Dave - 10/20/2025[/b]
+x[quote]

[b]Sercan - 10/20/2025[/b]
It appears the issue was caused by my use of values.completioncode, which was not set anywhere in <values>; it was supposed to be parameters.completioncode. My use of values.completioncode in that if-statement caused the code to quit working from there and onward, without warning.
[/quote]

Okay, so is it sorted now? If yes, then I need not spend additional time reformatting and trying to understand that code. It's hard to say in its current state what it's even supposed to do, since it's lacking comments, missing statement separators to ease reading, seems to use if constructs in places where if - else if would seemingly be more appropriate, and gnerally I can't know what the task scripts do or do not do correctly in terms of setting variables.
[/quote]

Yes, it is settled.
[/quote]

Excellent, thank you.

RE: Redirecting participants to different websites, chosen within the experiment

Sercan — Mon, 20 Oct 2025 16:24:25 GMT

+x[quote]

[b]Dave - 10/20/2025[/b]
+x[quote]

[b]Sercan - 10/20/2025[/b]
It appears the issue was caused by my use of values.completioncode, which was not set anywhere in <values>; it was supposed to be parameters.completioncode. My use of values.completioncode in that if-statement caused the code to quit working from there and onward, without warning.
[/quote]

Okay, so is it sorted now? If yes, then I need not spend additional time reformatting and trying to understand that code. It's hard to say in its current state what it's even supposed to do, since it's lacking comments, missing statement separators to ease reading, seems to use if constructs in places where if - else if would seemingly be more appropriate, and gnerally I can't know what the task scripts do or do not do correctly in terms of setting variables.
[/quote]

Yes, it is settled.

RE: Redirecting participants to different websites, chosen within the experiment

Dave — Mon, 20 Oct 2025 16:19:32 GMT

+x[quote]

[b]Sercan - 10/20/2025[/b]
It appears the issue was caused by my use of values.completioncode, which was not set anywhere in <values>; it was supposed to be parameters.completioncode. My use of values.completioncode in that if-statement caused the code to quit working from there and onward, without warning.
[/quote]

Okay, so is it sorted now? If yes, then I need not spend additional time reformatting and trying to understand that code. It's hard to say in its current state what it's even supposed to do, since it's lacking comments, missing statement separators to ease reading, seems to use if constructs in places where if - else if would seemingly be more appropriate, and gnerally I can't know what the task scripts do or do not do correctly in terms of setting variables.

RE: Redirecting participants to different websites, chosen within the experiment

Sercan — Mon, 20 Oct 2025 16:14:16 GMT

It appears the issue was caused by my use of values.completioncode, which was not set anywhere in <values>; it was supposed to be parameters.completioncode. My use of values.completioncode in that if-statement caused the code to quit working from there and onward, without warning.

RE: Redirecting participants to different websites, chosen within the experiment

Sercan — Mon, 20 Oct 2025 16:03:08 GMT

Here is the full batch script. I've confirmed that everything before the // COMPLETION CODES // bit runs correctly.

[code]<defaults>
/ minimumversion = "6.0.0.0"
/ txbgcolor = white
/ txcolor = black
/ finishpage = "https://app.prolific.co/submissions/complete?cc=INITIALIZED"
</defaults>

<batch fullexperiment>
/ file = "infopage.iqx"
/ file = "debug.iqx"
/ file = "induction.iqx"

/ file = "pre_likerts.iqx"
/ file = "delayaat.iqx"
/ file = "memorygrid.iqx"
/ file = "post_likerts.iqx"

/ file = "contingency.iqx"
/ file = "questionnaire_posttask.iqx"
/ file = "taskquestions.iqx"
/ file = "debqres.iqx"
/ file = "fcqtr.iqx"

/ file = "debriefing.iqx"
/ file = "attcatcher.iqx"

/ onscriptend = [

    // set language
    if(batch.fullexperiment.currentscript=="infopage.iqx"){
        parameters.languageshift=values.languageshift;
        parameters.finishpagetype=values.finishpagetype;
    }

    //////////////////////////////
    // record attention mishaps //
    //////////////////////////////
    if( batch.fullexperiment.currentscript == "delayaat.iqx" ||
        batch.fullexperiment.currentscript == "taskquestions.iqx" ||
        batch.fullexperiment.currentscript == "questionnaire_posttask.iqx" ||
        batch.fullexperiment.currentscript == "debqres.iqx" ||
        batch.fullexperiment.currentscript == "fcqtr.iqx"){
            parameters.attentionsuccess = parameters.attentionsuccess + values.attentionsuccess;
    }

    if(batch.fullexperiment.currentscript == "attcatcher.iqx" || batch.fullexperiment.currentscript == "debriefing.iqx"){
        if(parameters.attentionsuccess >=8){ //max is 9
            parameters.completioncode = values.correctcc;
        }else{
            parameters.completioncode = values.rejectcc;
        }
    }else{
        parameters.completioncode = batch.fullexperiment.currentscript;
        if(batch.fullexperiment.currentscript=="infopage.iqx"){
            parameters.completioncode=values.screenoutcc;
        }
    }

    //////////////////////
    // Completion codes //
    //////////////////////
    if(parameters.finishpagetype=="Other"){
        if(values.completioncode == values.correctcc){
            defaults.finishpage="XXX";
            if(parameters.languageshift==0){
                defaults.finishpage="XXX";
            }
            if(parameters.languageshift==1){
                defaults.finishpage="XXX";
            }
            if(parameters.languageshift==2){
                defaults.finishpage="XXX";
            }
        }
    }else if(parameters.finishpagetype=="Prolific"){
        defaults.finishpage = "https://app.prolific.co/submissions/complete?cc=<%parameters.completioncode%>";
    }else if(parameters.finishpagetype == "SalzburgUni"){
        if(parameters.completioncode == values.correctcc){
            parameters.completioncode = "XXXX";
        }
        defaults.finishpage = "https://salzburg.sona-systems.com/webstudy_credit.aspx?experiment_id=793&credit_token=<%parameters.completioncode%>";
        parameters.debug="Test.";
    }else{
        defaults.finishpage="google.com";
    }

    parameters.debug="I have run.";
]
</batch>

##############
# completion #

<values>
/ correctcc = "XXXX"
/ screenoutcc = "XXXX"
/ rejectcc = "XXXX"
/ attentionsuccess = 0
/ languageshift = 0
/ finishpagetype = 0
</values>

<parameters fullexperiment>
/ attentionsuccess = 0
/ completioncode = "INCOMPLETE"
/ finishpagetype = "indeterminate"
/ languageshift = 0
/ debug = 0
</parameters>
[/code]

RE: Redirecting participants to different websites, chosen within the experiment

Dave — Mon, 20 Oct 2025 16:02:32 GMT

+x[quote]

[b]Sercan - 10/20/2025[/b]
If parameters.finishpagetype is set to anything else, then no such aborting occurs and the debug parameter at the end is set.
[/quote]

Again, whithout you showing the actual code you're talking about, there is no way for anybody to spot and point out where your syntax mistakes are.

RE: Redirecting participants to different websites, chosen within the experiment

Sercan — Mon, 20 Oct 2025 16:00:36 GMT

If parameters.finishpagetype is set to anything else, then no such aborting occurs and the debug parameter at the end is set.

RE: Redirecting participants to different websites, chosen within the experiment

Dave — Mon, 20 Oct 2025 16:00:09 GMT

+x[quote]

[b]Sercan - 10/20/2025[/b]
Some more testing reveals that the / onscriptend bit is aborted once it evaluates if(parameters.finishpagetype=="Other") as true
It does not run what's between the {} and it also does not run anything after that, including code that is not enclosed in {} brackets anymore, including the aforementioned setting of a debug variable.
[/quote]

Then you have syntax mistakes. You don't show the actual code, so there's no way for me to tell you where you're going wrong

RE: Redirecting participants to different websites, chosen within the experiment

Sercan — Mon, 20 Oct 2025 15:58:24 GMT

Some more testing reveals that the / onscriptend bit is aborted once it evaluates if(parameters.finishpagetype=="Other") as true
It does not run what's between the {} and it also does not run anything after that, including code that is not enclosed in {} brackets anymore, including the aforementioned setting of a debug variable.

RE: Redirecting participants to different websites, chosen within the experiment

Dave — Mon, 20 Oct 2025 15:54:18 GMT

+x[quote]

[b]Sercan - 10/20/2025[/b]
Unfortunately the issue persists. The issue seems to be that the /onscriptend bit in the batch script does not always run.
I now set a parameter in the following manner:
[code]parameters.debug="I have run.";[/code]

And I've added a script debug.iqx that comes after the first script, with the following code:

[code]<text debug>
/ items= ("<%parameters.debug%> is the debug value")
/ position = (50%, 95%)
/ size = (100%,10%)
/ valign = center
/ halign = center
/ vjustify = center
/ erase = false
/ txbgcolor = transparent
/ fontstyle = ("Arial", 2%, false, false, false, false, 5, 1)
</text>

<trial debug>
/ stimulustimes = [0=debug]
/ validresponse = (anyresponse)
</trial>

<parameters>
/ debug = 0
</parameters>[/code]

Most of the time this just gives me 0 even though I set the debug parameter in the batch script. What do you advise?
[/quote]

Then you're not actually setting the parameter.

RE: Redirecting participants to different websites, chosen within the experiment

Sercan — Mon, 20 Oct 2025 15:30:06 GMT

Unfortunately the issue persists. The issue seems to be that the /onscriptend bit in the batch script does not always run.
I now set a parameter in the following manner:
[code]parameters.debug="I have run.";[/code]

And I've added a script debug.iqx that comes after the first script, with the following code:

[code]<text debug>
/ items= ("<%parameters.debug%> is the debug value")
/ position = (50%, 95%)
/ size = (100%,10%)
/ valign = center
/ halign = center
/ vjustify = center
/ erase = false
/ txbgcolor = transparent
/ fontstyle = ("Arial", 2%, false, false, false, false, 5, 1)
</text>

<trial debug>
/ stimulustimes = [0=debug]
/ validresponse = (anyresponse)
</trial>

<parameters>
/ debug = 0
</parameters>[/code]

Most of the time this just gives me 0 even though I set the debug parameter in the batch script. What do you advise?

RE: Redirecting participants to different websites, chosen within the experiment

Dave — Thu, 16 Oct 2025 11:22:31 GMT

+x[quote]

[b]Sercan - 10/16/2025[/b]
Hello! We will receive participants from several different participant pools, so we need to redirect them to different sites afterwards to give them credit. However, our logs show that everyone is being redirected to the same page: Prolific, with a custom completion code added to the end (i.e., not "INITIALIZED" like in the code). Could you show us how we can ensure that the script can dynamically and safely set the finish page? We already confirmed that "parameters.finishpagetype" is being set correctly.

[code]Full Experiment

<defaults>
/ minimumversion = "6.0.0.0"
/ finishpage = "https://app.prolific.co/submissions/complete?cc=INITIALIZED"
</defaults>

<batch fullexperiment>
/ file = "infopage.iqx"
/ file = "DelayAAT.iqx"
/ file = "debriefing.iqx"

/ onscriptend = [
    // set language
    if(batch.fullexperiment.currentscript=="infopage.iqx"){
        parameters.finishpagetype=values.finishpagetype;
    }

    //////////////////////
    // Completion codes //
    //////////////////////
    if(parameters.finishpagetype=="Prolific"){
        defaults.finishpage = "https://app.prolific.co/submissions/complete?cc=<%parameters.completioncode%>";
    }

    if(parameters.finishpagetype == "SalzburgUni"){
        defaults.finishpage = "https://XXXXX.sona-systems.com/webstudy_credit.aspx?experiment_id=XXXXX&credit_token=<%parameters.completioncode%>&survey_code=<%script.groupid%>";
    }

    if(parameters.finishpagetype=="Other"){
        if(values.completioncode == values.correctcc){
            defaults.finishpage="https://XXXXX?lang=en";
        }else{
            defaults.finishpage="https://google.com/";
        }
    }
]
</batch>

##############
# completion #

<values>
/ correctcc = "XXXXX"
/ screenoutcc = "XXXXX"
/ rejectcc = "XXXXX"
/ finishpagetype = 0
</values>

<parameters fullexperiment>
/ completioncode = "INCOMPLETE"
/ finishpagetype = "indeterminate"
</parameters>[/code]

[/quote]

You must select "Redirect to the default finish page" in the web settings if you want to dynamically set the finish page in script. Otherwise the web setting will override whatever you set in script.