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Thread: how to create a 2-back test (case 22831)

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  1. #1

    how to create a 2-back test (case 22831)

    I am trying to create a 2-back test using images. I have the directrt 2010 version and have read the tutorial, but I am having a hard time coding. This is my first time working on a computer program and am confused. Is there any way someone could talk me through it? I am testing for reaction time.
    Last edited by jason_reed; 02-25-2016 at 04:05 PM.

  2. #2
    Join Date
    Feb 2013
    Posts
    1,093
    Could you please give me some specific details about what exactly you need your two-back task to do in DirectRT? That is, what should a typical trial of this task look like and what do you need your participants to do.

    What specifically are you having trouble programming DirectRT to do?

    Please also tell me the full version number (i.e., 20xx.x.xxx) of your copy of DirectRT. You can find it by opening DirectRT and selecting Help>About DirectRT from the main menu bar.
    Jason Reed
    Empirisoft Software Support Specialist

  3. #3

    2-back test

    Between each presented image, I want to be able to show whether the answer is correct or not. I found this a template excel sheet online and included my photos. it is working, yet would you explain to me the condition and critical columns.. Would it be easier to analyze data if you code in a certain way - same with the time column?
    Directrt Version 2012.4.0.166
    Attached Files Attached Files

  4. #4
    Join Date
    Feb 2013
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    1,093
    Could you please explain what you mean by "critical columns?"
    Jason Reed
    Empirisoft Software Support Specialist

  5. #5
    Ignore my last question. The critical column is just to help show the matches and nonmatches - it just helps me with data. I have updated my excel sheet. At this point, I am facing problems with timing everything. How will I be able to present the stimuli for a certain amount of time rather than present it until there is a response? Also, I want to shorten the amount of time that the "feedback" is presented. Would you be able to help me?
    Attached Files Attached Files

  6. #6
    The correct Excel sheet is this one****
    Attached Files Attached Files
    Last edited by fadi; 02-29-2016 at 03:14 PM.

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