Millisecond Forums

+x

 

Dave - 2/26/2020

+x

 

Kevin_Bague - 2/26/2020

Hello I have a new question today. 

Is it possible to count the number of tentative in trials ?

In my task participants must stop a sound in pushing on a knob. But I would like record the number of tentative for each trial, that is the number of time that they have push on other knob.

Could I include 8 knobs in valid response and only one in correct response ? But how code bad response as 0 and correct as 1 ? 

Thanks 

You can use /isvalidresponse and/or /scorrectresponse logic to count the valid (but incorrect) response attempts.

<defaults >
/ screencolor = black
</defaults>

*************************************
SOUND

<item sound>
/ 1="3000Hz (5s).wav"
</item>

<sound son>
/ items = item.sound
</sound>

*************************************
FEEDBACK

<item success>
/ 1="Success!"
</item>

<item fail>
/ 1="Fail !"
</item>

<text sucess>
/ items = success
/ txcolor =black
/ txbgcolor =darkgreen
/txcolor = (255,255,255)
/ size = (90%, 90%)
/ fontstyle = ("Times new roman", 50pt, true, false, false, false, 5, 0)
/ position = (50, 50)
</text>

<text fail>
/ items = fail
/ txcolor =black
/ txbgcolor =crimson
/txcolor = (255,255,255)
/ size = (90%, 90%)
/ fontstyle = ("Times new roman", 50pt, true, false, false, false, 5, 0)
/ position = (50, 50)
</text>
*************************************

<trial uncontrolable >
/ beginresponseframe = -1
/ beginresponsetime = -1
/ correctmessage = true(text.success, 5000)
/ errormessage = true(text.fail, 5000)
/ stimulusframes = [5000=sound]
/ timeout = 5000
/ posttrialpause = 10000
/ responseinterrupt = trial
/ isvalidresponse = ["1";"2"
]
/ ontrialend = [if (trial.uncontrolable.timeout > timeout)
    
]
</trial>

+x

 

Dave - 2/26/2020

+x

 

Kevin_Bague - 2/26/2020

Hello I have a new question today. 

Is it possible to count the number of tentative in trials ?

In my task participants must stop a sound in pushing on a knob. But I would like record the number of tentative for each trial, that is the number of time that they have push on other knob.

Could I include 8 knobs in valid response and only one in correct response ? But how code bad response as 0 and correct as 1 ? 

Thanks 

You can use /isvalidresponse and/or /scorrectresponse logic to count the valid (but incorrect) response attempts.

Yes but with "/isvalidresponse" when participant press on knob the trial is stopped, but I would like that trial continue even the response is false. 

+x

 

Kevin_Bague - 2/26/2020

Hello I have a new question today. 

Is it possible to count the number of tentative in trials ?

In my task participants must stop a sound in pushing on a knob. But I would like record the number of tentative for each trial, that is the number of time that they have push on other knob.

Could I include 8 knobs in valid response and only one in correct response ? But how code bad response as 0 and correct as 1 ? 

Thanks 

You can use /isvalidresponse and/or /scorrectresponse logic to count the valid (but incorrect) response attempts.