Response accuracy unreliable because {SHIFT} logged as response

[Hester Duffy]

Do the responses have to be capitals? Could you not ask them to use
lower-case instead? Youll still have to figure out how to let them use both
+ and = without the shift key causing problems, but that might at least
help?

H


On Tue, Apr 23, 2013 at 10:38 AM, HFAC <bgbellows at gmail.com> wrote:

> David, thanks for the response. I thought of this solution as well, but I
> cannot use caps lock because the + and = would not work properly as they
> are on the same key.
>
>
> On Monday, April 15, 2013 2:14:53 PM UTC-4, McFarlane, David wrote:
>>
>> If all your letter responses are upper-case, why not just use Caps
>> Lock so that subjects do not have to press Shift?
>>
>> -----
>> David McFarlane
>> E-Prime training
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>> Twitter:  @EPrimeMaster (https://twitter.com/**EPrimeMaster<https://twitter.com/EPrimeMaster>)
>>
>>
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>>
>> At 4/12/2013 02:11 PM Friday, HFAC wrote:
>> >Hello all,
>> >
>> >Thank you for your advice in advance. To introduce myself, I use
>> >EPrime to develop my experiments because I have no experience coding
>> >(a shame I know), so please keep that in mind when responding. So
>> >far, I have only used the built in functions of EPrime.
>> >
>> >My Experiment: I have developed an experiment where participants see
>> >a stimuli and participants are expected to answer using a series of
>> >(capital) X, I, V, or -, +, and =. (For example: X=V+I) The
>> >participants have 2 minutes to come up with correct answer and they
>> >may try as many answers as they would like until they find the
>> >correct one. I have set the experiment up where if the participant
>> >enters an answer and it is incorrect they cannot continue but if
>> >they enter the correct response they will receive feedback that they
>> >are correct and can continue to the next puzzle.
>> >
>> >My Problem: I cannot get Eprime to recognize the correct response
>> >(for example: X=V+I) because when participants capitalize their
>> >responses EPrime records {SHIFT}. I have tried making the correct
>> >response {SHIFT}X{=}{SHIFT}V{+}{SHIFT}**I. This method is not reliable
>> >because participants hit shift a variable number of times (when
>> >making mistakes, etc.) so there is no way for me to predict the
>> >number of shifts in their answer.
>> >
>> >Please let me know if you need additional information in order to help
>> me.
>>
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-- 
Postdoctoral Fellow
Brain and Mind Institute
The University of Western Ontario
London, ON, N6A 5B7
Canada

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