I am trying to run a pseudorandom block in which I am presenting 24 images in a random order but I need to make sure the first two and last two images are fixed across multiple iterations of the programme. Could anyone help me implement this pseudorandom order for my task? I primarily used the build…

@movivi , you could still use Builder for this with no coding required. You would need 3 routines, all the same, except each routine has its own loop. The first routine would have a loop of 2 trials presenting the images in sequential order, the next routine would have a loop presenting the images in…

Mixing sequential and random order for a block

Builder

wakecarter February 11, 2022, 3:54pm 7

Have a look at my independent randomisation demo.

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Mixing sequential and random order for a block

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