How to manage List Objects with changing Sizes, and how to make No Response be the Correct Response?

[UO Motor Control]

Thanks for the suggestions Ben, I think I should be able to make things work
with it.

Out of continued curiosity, is there any way to programmatically delete a
level from a List object?

Wayne

On Fri, Oct 2, 2009 at 7:24 PM, ben robinson <baltimore.ben at gmail.com>wrote:

> in answer to your first question:i suspect the reason you find previously
> run trials interfering with future trials is because you're reseting your
> list with each trial you run, because you're generating your random trial
> information during each trial rather than at the start of the block... if
> you do all the randomization before starting the *block*, rather than before
> each trial, you should be able to List.SetAttrib all that randomized
> information and then a single List.Reset to ensure your updates take effect,
> then start the block.
>
> for the second question, you could also use an inline to reassign accuracy:
> If object.RESP = "" Then object.ACC = 1
> or you could ignore the object.ACC information, and create your own column
> in the list that runs the trials:
> If object.RESP = "" Then c.SetAttrib "myACC", 1
>
> hope that's helpful.
>
> ben
>
>
> On Fri, Oct 2, 2009 at 3:35 PM, UOMotorControl <uomotorcontrol at gmail.com>wrote:
>
>>
>> Hey E-Basic Senseis,
>>
>>  Long time listener, first time poster.  At the moment, I'm working
>> on a paradigm in E-Prime 1.2 that has a couple of quirks that are
>> escaping my ability to figure out using the .chm documents.
>>
>> The first - The paradigm consists of two types of trials, each
>> repeated 12 times.  Each one of these trials has a random number of
>> stimuli (between 10 and 12).  I had been trying to use inline code to
>> generate all the randomness of each of the stimuli, and then add then
>> to the List object for a given trial type.  What is escaping me is how
>> to delete those list levels I just used in order to prevent them from
>> interfering with future trials.
>>
>> The second -  Each one of these trials essentially involves a subject
>> clicking every time they see a 'O', and then not responding when they
>> see a 'X'.  As such, the correct response to the 'X' is no response.
>> I tried used the property 'EbNoResponseAsCorrect' as the correct
>> response in this case, but in testing, not responding was still given
>> as an incorrect response.  Any clues as how to best accomplish this?
>>
>> Many thanks for your assistance,
>>
>> Wayne Manselle
>> Motor Control and Cognition Laboratory
>> University of Oregon
>>
>>
>
> >
>

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups "E-Prime" group.
To post to this group, send email to e-prime at googlegroups.com
To unsubscribe from this group, send email to e-prime+unsubscribe at googlegroups.com
For more options, visit this group at http://groups.google.com/group/e-prime?hl=en
-~----------~----~----~----~------~----~------~--~---

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listserv.linguistlist.org/pipermail/eprime/attachments/20091003/98f5b3d9/attachment.htm>