Designing the multi-stimuli Experiment

[David McFarlane]

Dilip,

I second David Vinson's advice, and further urge you to first work 
through *all* the tutorials in *all* the manuals that come with 
E-Prime before you start any real work.  Especially work through 
Appendix C of the User's Guide, too many users overlook that and this 
section contains critical information for your project.  Also work 
through the New Features Guide, this is really just additional 
chapters to the User's Guide.

For US$30 you may also get "The E-Primer" 
(www.amazon.com/E-Primer-Introduction-Psychological-Experiments-University/dp/9087281838 
), which will take you rather further.  And with a bit more money and 
time, you may take some training online, see link below.  Taking some 
time out to do some training in E-Prime will make a real difference 
in your work.

-----
David McFarlane
E-Prime training 
online:  http://psychology.msu.edu/Workshops_Courses/eprime.aspx
Twitter:  @EPrimeMaster (https://twitter.com/EPrimeMaster )


At 3/27/2014 04:32 AM Thursday, David Vinson wrote:
>My approach would be to break down the experiment one task at a time:
>
>Pick one of your three tasks and figure out how to display one 
>stimulus and collect a response to it.
>Once that is working to your satisfaction then scale up to present 
>multiple stimuli drawn from a List object.
>And then once that works, add in the additional elements of the TrialProc.
>
>Since your tasks get incrementally more complicated, start with the 
>motor task - this seems very straightforward to setup in E-Prime and 
>will help you understand how List objects work.
>You can display multiple stimuli (whether string or numeric) on a 
>TextDisplay object by using attribute references like [Stimulus1] 
>and [Stimulus2].
>
>This is the basics of E-Prime so if you are having trouble with it, 
>I strongly urge you to go through the getting started guide and at 
>least some of the documentation.
>
>best,
>-dv
>
>
>On 27/03/2014 07:01, Dilip Kumar wrote:
>>Hello,
>>
>>I want to design a multi-stimuli experiment which will include 
>>Motor Response Task, Numerical Judgment Task, and combined 
>>Computation and Numerical Judgement Task. Each task will have 10 
>>trials presented with random stimuli (total of 30 trials in random order).
>>
>>- Motor Task will include pressing Left/Right button whichever is 
>>displaced in stimuli screen.
>>- Numerical Judgment task will include memorizing two numbers 
>>displayed in stimuli and responding with which one was 
>>larger/smaller on left/right side by pressing corresponding button.
>>- Computation & Numerical Judgment Task will add performing 
>>subtraction in numerical judgment task and pressing the 
>>corresponding left/right button to identify larger/smaller number
>>
>>My proposed paper based design is as follows:
>>*SessionProc*
>>- Introduction
>>- Experiment Design
>>-- Stimuli Design
>>--- MotorTask
>>---- TrialProc-> Stimulus + Fixation + Feedback
>>--- NumericTast
>>---- TrialProc-> Stimulus + Fixation + Feedback
>>--- ComputationalNumericTast
>>---- TrialProc-> Stimulus + Fixation + Feedback
>>-Thankyou/Goodbye
>>
>>I have recently started using E-prime trial version and I am not 
>>sure on how to go about designing this experiment. How do I include 
>>multiple stimuli Numeric and/or Word format, How can i add 
>>subtraction in Numerical Size Judgment task to make it 
>>Computational Numeric Judgment Task.
>>Any guideline or suggestions on designing this experiment will be 
>>highly appreciated.
>>
>>Thank You.
>>
>>Best Regards,
>>Dilip
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>--
>David Vinson, Ph.D.
>ESRC Research Fellow
>Cognitive, Perceptual and Brain Sciences Research Department
>University College London
>26 Bedford Way, London WC1H 0AP
>Tel +44 (0)20 7679 5311  (UCL internal ext. 25311)

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