Response accuracy unreliable because {SHIFT} logged as response

[David McFarlane]

If all your letter responses are upper-case, why not just use Caps 
Lock so that subjects do not have to press Shift?

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David McFarlane
E-Prime training 
online:  http://psychology.msu.edu/Workshops_Courses/eprime.aspx
Twitter:  @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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