OS (e.g. Win10): Win 10 PsychoPy version (e.g. 1.84.x): 3.0.5 **Standard Standalone? **: y What are you trying to achieve?: In my task, participants must rate images and odors on a number of dimensions. I have everything set up, but a last minute change has left me puzzled. Initially, participa…

A couple of caveats: This is very much a hack It involves setting everything up in the Builder and then making some simple changes in the Coder This is the flow: [flow] You have two separate input files associated with the loops trials1 and trials2 For both loops, loopType is random, and Is t…

Hi! I am thinking about how to apply the interleaved lists method to my experiment. As I understand, the guidelines you provide here are thought to be used with 2 different routines (one for fillers and one for targets, in my case … one for CAT trials and one for SEL trials) but a single spreadshee…

If you load them from one spreadsheet then you could do it in a single loop. However, you’d then need to shuffle one of the lists to make sure they are independent. You could use two loops and use one or two spreadsheets.

Randomly shuffle two sets of columns while preserving intra-group order

Builder

wakecarter March 27, 2021, 8:36am 4

I’d recommend preloading the items into lists using my interleaved lists method.

Simplest code to select random rows of two alternating excel files (avoiding delays along the experiment)

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Randomly shuffle two sets of columns while preserving intra-group order

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