experiment timer, or safe mid-experiment stop?

Fri Sep 28 17:27:15 UTC 2012

Interesting, thank you very much for your help! :-)

Best,
Sam

On Friday, September 28, 2012 12:18:37 PM UTC-4, Paul Groot wrote:
>
> Well, probably the easiest way to achieve this is to add additional inline 
> script that sets the duration of the response-object to the allowed 
> 'leftover' time. It shouldn't be to difficult if you only focus on the 
> trial objects that have their durations set to infinite. Basically is can 
> be something like this:
>
> Dim leftover as long
> leftover = StartObject.OnsetTime + maxduration - Clock.ReadMillisec
> if leftover<0 then
>    leftover = 0
> end if
> RespObject.Duration = leftover
>
> The maxduration constant (defined in the previous example) should be 
> placed in the global User Script section, so it is available in all inline 
> scripts. You might have to add additional scripts if you have several trial 
> objects that should be handled (probably using goto's and a label to jump 
> to the end of a trial if leftover<=0)
>
> cheers
> Paul
>
> 2012/9/28 Sam <saman... at gmail.com <javascript:>>
>
>> Hello, 
>>
>> I found the above script for setting the Break State to be very helpful 
>> since I am currently trying to accomplish something similar. I have an IQ 
>> test that must advance to a feedback stage after 20 minutes if the 
>> questions haven't been completed. However, the way I implemented the above 
>> suggestion, it seems to wait until the end of the trial in order to 
>> terminate. Since subjects can take as long as they want on each trial, the 
>> trial duration is "infinite", so it's possible it could never exit until 
>> much later if they are just beginning one of the questions before the time 
>> runs out. Do you know if there is a way I can modify the script so that it 
>> would end the current trial as soon as the time limit is reached?
>>
>> Thanks for your help, and I apologize if there is something very basic I 
>> have missed. I am somewhat new to programming in E-prime. 
>>
>> Sam
>>
>> On Thursday, September 27, 2012 5:00:11 PM UTC-4, Paul Groot wrote:
>>>
>>>
>>> Parallel to the manual break method (using GetUserBreakState), you could 
>>> add a simple test that calculates the difference between the 'çurrent time' 
>>> and some starting point, and use this value to set the break state as soon 
>>> as a timeout limit is reached:
>>>
>>>
>>> Const maxduration&=600000&   ' add & to make sure large values are 
>>> declared as long integer
>>>
>>> if Clock.ReadMillisec>=**StartObject.OnsetTime+**maxduration then
>>>    SetUserBreakState(1)
>>> end if
>>>
>>> if GetUserBreakState() then
>>>     TrialList.Terminate
>>>     BlockList.Terminate
>>> end if
>>>
>>> Where StartObject is the object that is the first one displayed in the 
>>> 10minute epoch (this must be an object that is displayed only once).
>>>
>>> Cheers
>>> Paul
>>>
>>>
>>>
>>> 2012/9/27 terhi helminen <helmin... at gmail.com>
>>>
>>>> Hi,
>>>>
>>>> For option number 1 see the safe exit sample in 
>>>> http://www.pstnet.com/support/**samples.asp?Mode=View&**SampleID=22<http://www.pstnet.com/support/samples.asp?Mode=View&SampleID=22>
>>>>   
>>>>
>>>> Terhi
>>>>
>>>> On Thu, Sep 27, 2012 at 7:17 PM, Alison T Miller Singley <
>>>> alisont... at gmail.com> wrote:
>>>>
>>>>> I'd like to modify an experiment to last only 10 minutes total, so 
>>>>> regardless of how many trials a subject completes, the experiment stops at 
>>>>> 10 minutes.
>>>>>
>>>>> I can think of two options, but I don't know how to operationalize 
>>>>> either of them:  :)
>>>>> 1 - have the test administrator watch time and manually stop the 
>>>>> experiment at 10 minutes
>>>>> Issue: by aborting the experiment (with ctrl+alt+shift), the .edat 
>>>>> file is not created. Is there a way to safely stop an experiment and 
>>>>> preserve the data? Or a way to write the .edat file continuously?
>>>>>
>>>>> 2 - set an experiment-level timer to end after 10 minutes
>>>>> Issue: I don't know how to do this. :) Does anyone know of a feature 
>>>>> or code I could use as an example?
>>>>>
>>>>> Thanks!
>>>>>
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>
>

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