Semirandomization of pictures

[JACanterbury]

i'm not quite clear what you're doing here.

If you only have 2 of each picture in a block, then if you set the 
triallist to random then you should at most get only 2 in a row, or do the 
blocks follow immediately on from one another and you're thinking about 
consecutive pictures across the block boundary?

or perhaps i've missed the point completely :)

On Friday, February 7, 2014 2:06:39 AM UTC, LYT wrote:
>
> Hi all,
>
> I have an experiment where there are three blocks that each have two sets 
> of the same pictures. I want to semirandomize the pictures such that no one 
> picture in either set is shown three times in a row. Does anyone know how 
> to do this? Please do ask for clarification if I was not clear!
>
> Thank you,
> LYT
>

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