latest build broke code

Tue Jul 2 19:06:35 UTC 2013

Hi Susan,

Thank you for the quick response. That fixed it perfectly!

Best,

Travis

On Tuesday, July 2, 2013 2:55:20 PM UTC-4, Susan Campbell wrote:
>
> Hi Travis,
>
> I have run into something really similar -- in my case, it had to do with 
> a new feature in 10 that generates code at the beginning of a procedure 
> instead of right before the object runs. It reduces timing delays, but it 
> barfs if attributes get set dynamically during the procedure. Here's the 
> writeup from the knowledge base:
>
> http://www.pstnet.com/support/kb.asp?TopicID=3299 
>
> The fix is to go into the properties pages for the Procedure and set 
> GeneratePreRun = BeforeObjectRun instead of TopOfProcedure.
>
> HTH,
> Susan
>
> On Tuesday, July 2, 2013 2:27:34 PM UTC-4, Travis Nichols, The 
> Pennsylvania State University wrote:
>>
>> Hello,
>>
>> I developed a paradigm on a lab computer running e-prime 2.0 (I believe 
>> it was the previous build). Everything worked great on that machine. Now 
>> that I've taken the paradigm to the computers we will be testing 
>> participants on, it does not work properly. These computers are running the 
>> latest version of e-prime (2.0.10.242).
>>
>> It is a basic 3-back task (participants are shown a series of letters one 
>> at a time and must indicate whether the currently displayed item matches 
>> the letter displayed 3 times ago). Because the letters are selected 
>> randomly (as opposed to a predetermined sequence), different trial types 
>> are handled via different procedures and lists (e.g., first three items by 
>> default can't be targets, then the rest are either a target or not). Since 
>> the letters are being drawn randomly but there is a fixed ratio of how many 
>> targets to non-targets, inline code tells the program if it draws a target 
>> item for a non-target trial to replace that letter with another one. 
>> Similarly, if it is a target trial, inline code tells the program to 
>> display the target letter (via a variable ThreeLettersBack that is 
>> constantly updated). Since the list governing target trials does not know 
>> ahead of time what the target letter will be, the value for the list 
>> attribute "Letters" (necessary for the text box displaying the letters in 
>> the procedure) is left as '?'. On the older build of e-prime, the inline 
>> code was enough to override that value and the program would correctly 
>> display the actual target letter on target trials. On this newest build on 
>> the other computers, for some reason the inline code is not sufficient and 
>> the program displays '?' from the list instead of the letter value provided 
>> by the inline code. Looking at the output files reveals that the program is 
>> selecting a letter, for some reason it just won't display it. Non-target 
>> trials work just fine.
>>
>> Any ideas what may have changed in this latest build to make this 
>> difference? Any recommendations for overcoming it? I will paste the inline 
>> code below so you have more information. Again, this is just for the target 
>> trials procedure. It references "ThreeList" which is the parent list 
>> governing both target and nontarget trials and comes after the 
>> list/procedure for the first three trials (nontarget by definition).
>>
>> 'Add contents of ThreeList to the "context" in which we are working.
>> c.Add ThreeList
>> c.Update
>>
>>
>> c.SetAttrib "Letters", ThreeLettersBack
>>
>>
>> 'Set ThreeLettersBack to what was previously TwoLettersBack.
>> 'Set TwoLettersBack to what was previously OneLetterBack.
>> 'Set OneLetterBack to the current letter.
>> ThreeLettersBack = TwoLettersBack
>> TwoLettersBack = OneLetterBack
>> OneLetterBack = c.GetAttrib("Letters")
>>
>> Thank you for your assistance. I know that is a lot, so I am happy to 
>> provide more information/clarification if that will be helpful.
>>
>> Travis
>>
>

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