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Changing the item of a stimulus across trials
Changing the item of a stimulus across trials
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Changing the item of a stimulus across trials
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NicoB
NicoB
posted 4 Years Ago
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Group: Forum Members
Posts: 7,
Visits: 12
Dear Members,
does anyone know a way to change all items of a stimulus?
<values>
/ index = 1
</values>
<item numbers>
/ 1 = "1"
/ 2 = "2"
/ 3 = "3"
/ 4 = "4"
</item>
<item letters>
/ 1 = "a"
/ 2 = "b"
/ 3 = "c"
/ 4 = "d"
</item>
<text stim>
/ items = letters
/ select = values.index
</text>
<trial t1>
/ ontrialbegin = [
//Some code to determine via values.index which letter is displayed
]
/ stimulusframes = [1 = stim]
/ inputdevice = mouse
/ validresponse = (text.stim)
</trial>
<trial t2>
/ ontrialbegin = [
//Change the item of the stimulus to numbers
//So one can determine which number is displayed via values.index
//I thought of
text.stim.clearitems();
//and then append- or setitem(); However, I did not succed in resetting all the items.
]
/ stimulusframes = [1 = stim]
/ inputdevice = mouse
/ validresponse = (text.stim)
</trial>
<block run>
/ trials = [1 = t1; 2-5 = t2]
</block>
So in the first trial I want to select from the letters item via stim, in the second I want to select from the number item.
Is there a way asides from "stacking" the items or using multiple stimuli?
Kind regards, Nico
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Changing the item of a stimulus across trials
NicoB
-
4 Years Ago
There are multiple ways to do this (some of which you already...
Dave
-
4 Years Ago
Fair enough. I have a test in which children are asked a question and...
NicoB
-
4 Years Ago
Performance- and memory-consumption-wise, either (1) per-category...
Dave
-
4 Years Ago
Thanks Dave, went for the one item option, had some unexpected...
NicoB
-
4 Years Ago
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