Two questions

[Tim Ritzert]

Thanks Paul!

One final question: I now have everything working except I can't figure out
how to clear the global strMessage variable at the start of each new cycle
- is there a simple line of code to do the trick?

Again, thanks so much, the help is very much appreciated!

-Tim



On Tue, Mar 12, 2013 at 5:43 PM, Paul Groot <pfc.groot at gmail.com> wrote:

> If the stimuli are simple text string, it would be rather easy to do as
> described before. The only thing to change is to to add another
> if-statement to make sure that the current stimulus is only appended to the
> feedback message if the response was "1":
>
> if StrComp(Stim.RESP,"1")=0 then
>    if Len(strMessage)=0 then
>       strMessage = "These are the stimuli: "
>    else
>       strMessage= strMessage & ", "
>    end if
>    strMessage= strMessage& c.GetAttrib("Stimulus")
> end if
>
> Perhaps it is even better to replace the "if Len(strMessage)=0 then" test
> with the following: "if counter=0 then". (To reset the message text if the
> counter is reset to zero.)
>
> best
> paul
>
>
>
> On 12 March 2013 22:21, Tim Ritzert <tritzert at kent.edu> wrote:
>
>> Paul,
>>
>> Thanks so much for the help - the first part seems easy enough and I'll
>> see how that goes.
>>
>> As for my second question: I want participants to go through a set of 100
>> stimuli and answer either "1" "2" or "3" to each one, do this again until
>> there are 7 or less "1" responses, and then at the end I want E-Prime to
>> display the final 7 or less stimuli that were responded to with a "1" all
>> at the same time. As I have it now, they display one at a time.
>>
>> Hope that makes sense, this is all new to me!
>>
>> -Tim
>>
>> Sent from my iPhone
>>
>> On Mar 12, 2013, at 5:01 PM, Paul Groot <pfc.groot at gmail.com> wrote:
>>
>> Tim,
>>
>> The easiest way to do this is to use the []-attribute syntax in the
>> allowable field: [MyKeys]. The MyKeys attribute is normally defined in a
>> list object, but you can also assign values in a small inline script:
>>
>> if counter<7 then
>>     c.SetAttrib "MyKeys", "AaBb"
>> else
>>     c.SetAttrib "MyKeys", "XxYy
>> end if
>>
>> I'm not sure if I understand the second question, but my guess is that it
>> would be rather easy to keep a global variable that is used to ensemble an
>> message string for the incorrect responses.
>>
>> if Len(strMessage)=0 then
>>    strMessage = "You entered the following wrong responses: "
>> else
>>    strMessage= strMessage & ", "
>> end if
>> strMessage= strMessage& c.GetAttrib("Stimulus")
>>
>> This variable can then be used to display a feedback message (again using
>> a []-attribute reference):
>>
>> c.SetAttrib "Message", strMessage
>>
>> You must also take care to clear the global strMessage variable at the
>> start of each new series.
>> (And don't forget to declare the global strMessage variable)
>>
>> Best
>> Paul
>>
>>
>> On 12 March 2013 20:53, Tim <tritzert at kent.edu> wrote:
>>
>>> I am running a study in which participants re-run trials based on
>>> previous responses (i.e. errors are re-run until reaching a criterion of 7).
>>>
>>> That all works wonderful, however I would like to change the allowable
>>> responses during certain re-runs of the stimuli. I already have cycle
>>> counter declared as a global variable (counting the number of re-runs) but
>>> I cannot determine the inline syntax necessary to tell E-Prime to change
>>> the allowable responses based on the value of the cycle counter. Does
>>> anyone know how this would be done?
>>>
>>> Also, does anyone know how to simultaneously display multiple levels of
>>> the same attribute on one text display? This is for the same study as
>>> above. Basically, when participants reach criterion of # of errors, I would
>>> like to display all errors simultaneously.
>>>
>>> Thanks so much in advance,
>>> Tim
>>>
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>
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>



-- 
-Tim

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