Equal presentation of stimuli

Author	Message
Dave	Dave posted 11 Years Ago ANSWER Post Details Share Post
Group: Administrators Posts: 13K, Visits: 109K	/ trials = [1-30 = noreplacenorepeat(a,b,c)] will give you 10 a-trials, 10 b-trials and 10 c-trials in random order, while trying to make sure none repeats (e.g. no a-a). This is about trial selection, not stimulus selection. They are not necessarily the same.
	Reply Like 81
GeeP	GeeP posted 11 Years Ago HOT Topic Details Share Topic
Group: Forum Members Posts: 81, Visits: 118	Hi, I know that 'noreplacenorepeat' command assures that a series of stimuli are not randomly selected without replacement or consecutive selection of a stimulus. Is this enough to assure that every stimulus in the set (e.g., A, B and C) are presented equally? Say, if I have set the total number of trials to be 30 trials, would using the 'noreplacenorepeat' command ensure that A, B and C are each presented for 10 trials each? I wanted to be sure about this. Thank you! -G
	Reply Like 92