Terminate list at set time, even if current sample no completed.

[Nadia Martin]

Hi Paul and David, 

Can this solution be implemented even with images being pre-loaded?

Thank you, 
Nadia  



Le dimanche 10 novembre 2013 21:39:37 UTC-5, Kate Cox a écrit :
>
> Hi I'm very new to eprime and have no script background so please be 
> gentle :).
>
> *What I'm trying to do:* present participants with a series of 
> mathematical equations which they must answer, using the keyboard. They 
> must answer as many equations as they can in 2 minutes. After 2 minutes the 
> task will terminate (and go on to the next task) even if they are part way 
> through giving an answer. The outcomes i'm measuring are accuracy, RT of 
> correct responses and number of correct responses in the 2 minute time 
> window.
>
> *What is working and how I have it set up*: I have 300 potential 
> equations in a list called "TrialList", which are presented on a 
> TextDisplay. This works perfectly.
> Answers typed on the keyboard are echoed on the screen and logged. When an 
> answer is complete the participant presses ENTER and the the next equation 
> in my list is shown. This works perfectly. 
> In the TextDisplay properties, under the Duration/Input tab I have 
> duration as infinite, timing mode as Event, the keyboard as the only 
> device, allowable responses is any, time limit is same as duration and End 
> action is terminate.
> In the list properties, under the Reset/Exit tab I have set Exit List to 
> "After 120 seconds"
>
> *The problem: *I can't get the task to terminate at exactly 2 minutes. At 
> the moment it appears to stop when the trial that is running at 2 minute 
> mark is terminated (ie the participant presses enter).  For example if a 
> participant starts an equation at 1:55 then the task won't stop at 2:00 it 
> will wait until they submit their answer and that trial is terminated. As 
> some of my participants aren't particularly fast to provide their responses 
> this may end up being closer to 3 minutes than 2.  
>
> I'm pretty useless with script but I've found the bit that refers to the 
> termination settings and it looks like this:
>
> Set TrialList.TerminateCondition = TimedMSecs(120000)
> Set TrialList.ResetCondition = Samples(300)
> TrialList.Reset
>
> I've tried searching this group and the Eprime guide for the answers but 
> can't find how to fix it. I know some people have mentioned some script 
> that terminates at a particular clock setting  but my script seems to look 
> different to theirs so I'm not sure how to implement it. Also this maths 
> task is part of a larger battery of tasks so how a participant performs on 
> earlier tasks will determine where the running clock is when they get up to 
> the maths problems (ie a participant who is faster at earlier tasks may 
> start the math task at the 5 minute mark and someone who is slower might 
> start it at the 7 minute mark, so the running clock will be different 2 
> minutes into the math task).
>
> I hope all this makes sense. Any help would be hugely appreciated.
>
> thank you in advance
> Kate 
>

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