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Randomizing behavioral measures in Inquisit 5

barnhart135 — Mon, 18 Jan 2021 21:28:44 GMT

Hello!

I have merged two scripts, one for a go no/go task and another for a n-back task, into one for a study I am running. The last issue is I need to figure out how to randomize the presentation of these two tasks. Does anyone have any leads/code on how to do this?

Thanks a ton!

Wes

RE: Randomizing behavioral measures in Inquisit 5

barnhart135 — Mon, 18 Jan 2021 21:28:44 GMT

+x[quote]

[b]Dave - 1/18/2021[/b]
+x[quote]

[b]barnhart135 - 1/18/2021[/b]
Hi--

This is helpful. Where would I include this script at (i.e., which script would I save it to)?

<batch>
/ file = "gonogo.iqx"
/ file = "nback.iqx"
/ selectionmode = random
</batch>

Just as a quick background: I am link participants from Qualtrics to complete these two measures, using an online sample. Would this still work with this style of study? So, for example, I am not running participants in the lab, and they must complete a Qualtrics portion first.
[/quote]

The batch element(s) go in a separate script file, call it e.g. "batch.iqx" and store it alongside the two actual scripts (the go/no-go and n-back). You then upload all files -- the batch script, the two task scripts, and any other files those scripts need such as images -- and then you select the batch script as the experiment's start script via the dropdown menu in your online experiment's settings.

> I am link participants from Qualtrics to complete these two measures, using an online sample. Would this still work with this style of study?

Yes, this works just fine on the web. For interoperating with Qualtrics, see https://www.millisecond.com/support/docs/v5/html/howto/interopsurveys.htm under "Sending Subject IDs from 3rd Party Site to Inquisit" and "Configuring Inquisit to Receive IDs from a 3rd Party Web Site".

[/quote]

Thank you SO much! I think it's working!

All the best,
Wes

RE: Randomizing behavioral measures in Inquisit 5

Dave — Mon, 18 Jan 2021 18:13:56 GMT

+x[quote]

[b]barnhart135 - 1/18/2021[/b]
Hi--

This is helpful. Where would I include this script at (i.e., which script would I save it to)?

<batch>
/ file = "gonogo.iqx"
/ file = "nback.iqx"
/ selectionmode = random
</batch>

Just as a quick background: I am link participants from Qualtrics to complete these two measures, using an online sample. Would this still work with this style of study? So, for example, I am not running participants in the lab, and they must complete a Qualtrics portion first.
[/quote]

The batch element(s) go in a separate script file, call it e.g. "batch.iqx" and store it alongside the two actual scripts (the go/no-go and n-back). You then upload all files -- the batch script, the two task scripts, and any other files those scripts need such as images -- and then you select the batch script as the experiment's start script via the dropdown menu in your online experiment's settings.

> I am link participants from Qualtrics to complete these two measures, using an online sample. Would this still work with this style of study?

Yes, this works just fine on the web. For interoperating with Qualtrics, see https://www.millisecond.com/support/docs/v5/html/howto/interopsurveys.htm under "Sending Subject IDs from 3rd Party Site to Inquisit" and "Configuring Inquisit to Receive IDs from a 3rd Party Web Site".

RE: Randomizing behavioral measures in Inquisit 5

barnhart135 — Mon, 18 Jan 2021 18:07:29 GMT

Hi--

This is helpful. Where would I include this script at (i.e., which script would I save it to)?

<batch>
/ file = "gonogo.iqx"
/ file = "nback.iqx"
/ selectionmode = random
</batch>

Just as a quick background: I am link participants from Qualtrics to complete these two measures, using an online sample. Would this still work with this style of study? So, for example, I am not running participants in the lab, and they must complete a Qualtrics portion first.

RE: Randomizing behavioral measures in Inquisit 5

Dave — Mon, 18 Jan 2021 17:56:45 GMT

+x[quote]

[b]barnhart135 - 1/18/2021[/b]
Hello!

I have merged two scripts, one for a go no/go task and another for a n-back task, into one for a study I am running. The last issue is I need to figure out how to randomize the presentation of these two tasks. Does anyone have any leads/code on how to do this?

Thanks a ton!

Wes
[/quote]

Typically, you don't want or need to merge scripts. You can simply keep them separate and instead run them in either fixed or random order via a <batch> script as in

<batch>
/ file = "gonogo.iqx"
/ file = "nback.iqx"
/ selectionmode = random
</batch>

for random ordering or e.g.

// go-no go first
<batch>
/ file = "gonogo.iqx"
/ file = "nback.iqx"
/ subjects = (1 of 2)
/ groupassignment = groupnumber
</batch>

// n-back first
<batch>
/ file = "nback.iqx"
/ file = "gonogo.iqx"
/ subjects = (2 of 2)
/ groupassignment = groupnumber
</batch>

if you want to systematically counterbalance task order by group ID.

https://www.millisecond.com/support/docs/v5/html/language/elements/batch.htm