Hi,
I am not sure if I understand the function of noreplace completely, as it can be used with trials and within picture elements.
So, I know that 'noreplace' presents stimuli randomly without replacement but does it make sense to use it like this:
/trials = [1-48=noreplace(block1); 49=break; 50-98=noreplace(block2)]
So, in block1, mentioned above, if this (see below) is what I have, then what does the 'noreplace' function do in the trial above?
<trial block1>
/ pretrialpause = 1000
/ validresponse = ("d", "k")
/ correctresponse = ("d")
/ stimulustimes = [0 = fixation; 1000 = block1faces; 1500 = Questions]
</trial>
block1faces, basically has a set number of picture items as shown below and I have the '/select' also set as noreplace. Same for 'Questions' as well (see below).
<picture block1faces>
/ items = block1faces
/ size = (250, 250)
/ position = (50, 50)
/ select = noreplace
</picture>
<text Questions>
/ items = questions
/ select = noreplace
/ position = (50, 50)
/ size = (5 in, 3 in)
/ vjustify = center
/ fontstyle = ("Garamond", 3%, true)
</text>
<item questions>
/1 = "QQQ?"
/2 = "AAA?"
/3 = "MMM?"
/4 = "VVV?"
</item>
<item block1faces>
/1 = "face1.jpg"
/2 = "face2.jpg"
/3 = "face3.jpg"
/4 = "face4.jpg"
/5 = "face5.jpg"
/6 = "face6.jpg"
/7 = "face7.jpg"
/8 = "face8.jpg"
/9 = "face9.jpg"
/10 = "face10.jpg"
/11 = "face11.jpg"
/12 = "face12.jpg"
Basically, the main motive is for the each face to be presented 4 times once each with the 4 questions. So, to accomplish that where do I specify 'noreplace'.
Thank you!
-G