Randomly Selecting 1 File From a Stimulus List...

Hello, forum. New to SuperLab and new to the forum, so please bear with me.

I have created an experiment where participants are shown movies of 3D stick figures walking either 1, 5, or 10 degrees to the left or right (participants respond “left” or “right”). For each degree and direction, I have 5 different movies. They are basically the same, except they start at a different point in the walker’s stride. How can I get Superlab to randomly select 1 of the 5 movies? I tried making stimulus lists for each direction and degree, but Superlab is presenting 5 alternate movies one after the other.

The experiment is attached, if that makes it clearer. Any help would be much appreciated. Please help!

Problem.sl4 (25.7 KB)

Try randomizing trials within a block (in the Block Editor).