Manual randomization of stimuli

[Sheila Bouten]

I wish to display 1000 images in my program by iterating through a random list of numbers I will input instead of using the 'random' option offered by Eprime. Does anyone know how to do this? I want to do this because my computer sometimes crashes mid experiment, and I would like to pick up where the participant left off instead of allowing Eprime to re-randomize the images. 

Thanks! 

[David McFarlane]

So, you want to run stimuli in a fixed externally-generated
order? Do you want to use the same order for all runs, or
individualize the order for each run?

If the former, then you might first put your List into the desired
order, then run it in Offset order by Session (or Group), and use
Session (or Group) to give the starting point. See
https://groups.google.com/d/topic/e-prime/JtLh6DxqCbs for a bit more
discussion. To get the the List into the desired order, I find Excel handy.

If the latter, then you might use the Explicit Order object, see that
topic in the E-Basic Help facility. This takes a bit of inline code
and can be a bit tricky, so you might want to contact PST Web Support
for further details.

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

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