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

[David McFarlane]

Nadia,

I cannot think of any reason that pre-loading 
images would affect any of this, so please give it a try!

-- David McFarlane


At 5/30/2014 11:05 AM Friday, Nadia Martin wrote:
>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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