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Forum Newbie
Group: Forum Members
Last Login: 8/27/2008 8:39:15 AM
Posts: 3,
Visits: 22
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| dear all, we start to use e-prime this month. so we apologize our "stupid" question:  we´ve designed a stroop experiment. the structure of our experiment should be to show the percent correct after the practice trials. we don´t want to show the percentage correct after each trial, but after the block of trials in sum. e.g. the pratice-block consists of 40 trials, so when the subject responds 20 times correct, the percent-correct will be 50 for the hole block. this value should be shown to the subject. we already searched the forum, but didn`t found an apropriate solution. we have tried several ideas of the forum users, but could solve the problem. it would be very nice to get some professional help igor
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Forum MVP
Group: Administrators
Last Login: Today @ 5:00:06 PM
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| If you are using EP2 Pro, you can take a look at Sample: User-Created Package Files which shows a way to perform a similar operation to what you described with minimal (or zero) script. If you are using EP2 Std or 1.x then the same can be accomplished by creating a Summation object in User script and assigning values during the trial which can be shown/reviewed at a block or higher log level.
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Forum Newbie
Group: Forum Members
Last Login: 8/27/2008 8:39:15 AM
Posts: 3,
Visits: 22
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| Hello, thanks for your fast reply. we are using e-prime 1.xx. we tried to open the downloaded file which you recommended, but we could not open it. your answer is exactly what we`re looking for. at this moment we don´t know which commands to use, for writing scipts in the users script or inlines. is there a possibility to look in the user-manuals to get these informations? thank you very much igor
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Forum MVP
Group: Administrators
Last Login: Today @ 5:00:06 PM
Posts: 569,
Visits: 1,238
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| I'd check the samples to see if there is anything more specific that the attached does not do. In addition, all of the manuals are good to at least skim before tackling something new. There may even be an example of doing block accuracy in the Getting Started Guide. In the attached, a summation object (defined in User script) tracks the .Acc and then at the block level assigns to a Context variable which is displayed.
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Forum Newbie
Group: Forum Members
Last Login: 8/27/2008 8:39:15 AM
Posts: 3,
Visits: 22
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| Thank you very much for your fast reply, as i wrote, we looked for some similar experiments in this forum and the internet. i found in the internet a script, which is useful. our experiment is different to other experiments. i changed the attribut, which was added to the summation, after that we got the accuracy and it was shown at the end of the trial-block. we solved the problem. thanks a lot for your commitment! igor
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