Hi there,
In my code, I have two counterbalances of the stimuli that participants see. Half of the participants see 50 sets of audios that are paired with two images and the other half sees the other 50 sets. So I used "list" to code this.
<item sound1>
/ 1 = "stim/Pair00_SoundA.wav"
/ 2 = "stim/Pair01_SoundA.wav"
/ 3 = "stim/Pair02_SoundA.wav"
/ 4 = "stim/Pair03_SoundA.wav"
/ 5 = "stim/Pair04_SoundA.wav"
/ 6 = "stim/Pair05_SoundA.wav"
....
/ 100 = "stim/Pair99_SoundA.wav"
</item>
<item picture1>
/ 1 = "stim/Pair00_ImageA1.jpg"
/ 2 = "stim/Pair01_ImageA1.jpg"
/ 3 = "stim/Pair02_ImageA1.jpg"
/ 4 = "stim/Pair03_ImageA1.jpg"
/ 5 = "stim/Pair04_ImageA1.jpg"
/ 6 = "stim/Pair05_ImageA1.jpg"
...
/ 100 = "stim/Pair99_ImageA1.wav"</item><item picture2>
/ 1 = "stim/Pair00_ImageA2.jpg"
/ 2 = "stim/Pair01_ImageA2.jpg"
/ 3 = "stim/Pair02_ImageA2.jpg"
/ 4 = "stim/Pair03_ImageA2.jpg"
/ 5 = "stim/Pair04_ImageA2.jpg"
/ 6 = "stim/Pair05_ImageA2.jpg"
...
/ 100 = "stim/Pair99_ImageA2.wav"
</item>
<list cb1>
/ items = (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50)
/ selectionmode = random
</list>
<list cb2>
/ items = (51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100)
/ selectionmode = random
</list>
<list sound>
/ selectionmode = values.cb
/ items = (list.cb1.nextvalue, list.cb2.nextvalue)
</list>
<list picture>
/ selectionmode = values.cb
/ items = (list.cb1.currentvalue, list.cb2.currentvalue)
</list>
<sound sound1>
/ items = sound1
/ select = list.sound.nextvalue
</sound>
<picture picture1>
/ items = picture1
/ select = list.picture.nextvalue
/ size = (values.pictureheight, values.picturewidth)
/ position = (30%, 50%)
</picture>
<picture picture2>
/ items = picture2
/ select = list.picture.nextvalue
/ size = (values.pictureheight, values.picturewidth)
/ position = (70%, 50%)
</picture>
I'm hoping to select items from the list with no repeat and go through all the items, but "selectionmode = random" repeats its selection, and I also don't want "sequence". "Noreplace" doesn't seem to work here. Is there another command?
Additionally, each participant is going to see 5 additional sets of stimuli that serve as attention checks. All the participants are seeing the same ones. But the stimuli don't seem to be updating properly in my code. How should I edit my code?
<item soundMM>
/ 1 = "Mismatch/MM_Pair00_SoundA.wav"
/ 2 = "Mismatch/MM_Pair01_SoundA.wav"
/ 3 = "Mismatch/MM_Pair02_SoundA.wav"
/ 4 = "Mismatch/MM_Pair03_SoundA.wav"
/ 5 = "Mismatch/MM_Pair04_SoundA.wav"
</item>
<item pictureMM1>
/ 1 = "Mismatch/MM_Pair00_ImageA1.jpg"
/ 2 = "Mismatch/MM_Pair01_ImageA1.jpg"
/ 3 = "Mismatch/MM_Pair02_ImageA1.jpg"
/ 4 = "Mismatch/MM_Pair03_ImageA1.jpg"
/ 5 = "Mismatch/MM_Pair04_ImageA1.jpg"
</item>
<item pictureMM2>
/ 1 = "Mismatch/MM_Pair00_ImageA2.jpg"
/ 2 = "Mismatch/MM_Pair01_ImageA2.jpg"
/ 3 = "Mismatch/MM_Pair02_ImageA2.jpg"
/ 4 = "Mismatch/MM_Pair03_ImageA2.jpg"
/ 5 = "Mismatch/MM_Pair04_ImageA2.jpg"
</item>
<sound soundMM>
/ items = soundMM
/ select = noreplace
</sound>
<picture pictureMM1>
/ items = pictureMM1
/ select = sound.soundMM.currentindex
/ size = (values.pictureheight, values.picturewidth)
/ position = (30%, 50%)
</picture>
<picture pictureMM2>
/ items = pictureMM2
/ select = sound.soundMM.currentindex
/ size = (values.pictureheight, values.picturewidth)
/ position = (70%, 50%)
</picture>
Thank you so much!