Randomize objects before they are played

[Lucas]

I’m doing a listening experiment where the participants listen to two audio files per trial and deem them as either “same” or “different”. I want to randomize the audio files such that they don’t always come in the same order. E.g., I want ‘tale’ to show up first only 50% of the time and ‘tæle’ first the other 50%. The way it’s coded now, ‘tale’ always comes first.

Here’s a demo: https://farm.pcibex.net/r/GeGonq/

and here’s my code:

// Experimental trial 1
newTrial(“experimental-trial”,
newAudio(“tale”, “tale.m4a”)
.play()
.print()
.center()
.wait()
,
newAudio(“tæle”, “tæle.m4a”)
.play()
.print()
.center()
.wait()
,
getAudio(“tale”)
.remove()
,
getAudio(“tæle”)
.remove()
,
newCanvas(“empty-canvas”, 1, 40)
.print()
,
newText(“trial-instructions”, “<b> SAME (F) or DIFFERENT (J)</b>?”)
.print()
.center()
,
newKey(“keypress”, “FJ”)
.wait()
)

I’ve tried experimenting with .shuffle(), but I haven’t found a solution. Does anybody know how to do this?
Thanks in advance.

[Author]

Posts