presenting randomized stimuli without repeating

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presenting randomized stimuli without repeating

presenting randomized stimuli without repeating

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Dave	Dave posted 9 Years Ago ANSWER Post Details Share Post
Group: Administrators Posts: 13K, Visits: 104K	The code you posted is not directly related to item selection; it's about trial selection. It means for a total of 44 trials (2-45), sample without replacement from the 6 listed elements (dtmatched1stcorrect, ldtmatched2ndcorrect, ...) in equal proportions without replacement. Since 44 is not divisible by 6, that doesn't make a whole lot of sense (44/6=7.33), since there cannot be any such thing as 0.33 of a trial. You'll almost certainly want to adjust either the number of trials, their relative proportions or both. See the documentation for the <block> element's /trials attribute for details on how trial selection works. You can also find examples in this forum, e.g. https://www.millisecond.com/forums/FindPost16338.aspx https://www.millisecond.com/forums/FindPost3693.aspx Hope this helps.
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porky1985	porky1985 posted 9 Years Ago Topic Details Share Topic
Group: Forum Members Posts: 1, Visits: 12	Hi I am new to Inquisit and I do not have a programming background. That's why I downloaded a script from the sample library and tweaked it a little bit. However< I ran into a problem that when I tried to randomize the stimuli with 'noreplace', some of my stimuli somehow repeat themselves. 2-45=noreplace(ldtmatched1stcorrect, ldtmatched2ndcorrect, ldtmatched3rdcorrect, ldtunmatched1stcorrect, ldtunmatched2ndcorrect, ldtunmatched3rdcorrect) Under Idtmatched1stcorrect etc., I have a list of items. I'd appreciate if anyone could offer some help. Thanks a million and I apologize in advance if my questions are not clear enough.
	Reply Like 52