Why doesn't this script loop?

Back

Why doesn't this script loop?

Author	Message
Nick Riches	Nick Riches posted 8 Years Ago Topic Details Share Topic
Group: Forum Members Posts: 19, Visits: 69	Hi I have a very basic query. My script doesn't loop through items. Below is a very simple Minimal Worked Example. It should loop through the sentences, but only displays 1. Thanks Nick <item sentences> / 1 = "A dog is a canine" / 2 = "A cat is a feline" / 3 = "A bear is ursine" </item> <item questions> / 1 = "" / 2 = "Did this sentence mention a cat?" / 3 = "" </item> <text sentence> / items = sentences / select = text.question.currentindex </text> <text question> / items = questions </text> <trial trial> / stimulusframes = [1-3 = noreplace(sentence)] / validresponse = ("Y", "N") </trial> <block block> / trials = [1 = trial] </block> <expt expt> / blocks = [1 = block] </expt>
	Reply Like 61
Dave	Dave posted 8 Years Ago ANSWER Post Details Share Post
Group: Administrators Posts: 13K, Visits: 105K	+x Nick Riches - Monday, November 20, 2017 Hi I have a very basic query. My script doesn't loop through items. Below is a very simple Minimal Worked Example. It should loop through the sentences, but only displays 1. Thanks Nick <item sentences> / 1 = "A dog is a canine" / 2 = "A cat is a feline" / 3 = "A bear is ursine" </item> <item questions> / 1 = "" / 2 = "Did this sentence mention a cat?" / 3 = "" </item> <text sentence> / items = sentences / select = text.question.currentindex </text> <text question> / items = questions </text> <trial trial> / stimulusframes = [1-3 = noreplace(sentence)] / validresponse = ("Y", "N") </trial> <block block> / trials = [1 = trial] </block> <expt expt> / blocks = [1 = block] </expt> <trial trial> / stimulusframes = [1-3 = noreplace(sentence)] / validresponse = ("Y", "N") </trial> is not supposed to "loop" through sentences. A given stimulus object like <text sentence> will select one and only one item per trial, displaying the element repeatedly during the trial will not lead to a new selection. If you wish to display three different items during a trial, you need three different stimulus objects -- e.g. <text sentence_a> to <text sentence_c> -- and have your trial display all three.
	Reply Like 65
Nick Riches	Nick Riches posted 8 Years Ago ANSWER Post Details Share Post
Group: Forum Members Posts: 19, Visits: 69	+x Dave - Monday, November 20, 2017 +x Nick Riches - Monday, November 20, 2017 Hi I have a very basic query. My script doesn't loop through items. Below is a very simple Minimal Worked Example. It should loop through the sentences, but only displays 1. Thanks Nick <item sentences> / 1 = "A dog is a canine" / 2 = "A cat is a feline" / 3 = "A bear is ursine" </item> <item questions> / 1 = "" / 2 = "Did this sentence mention a cat?" / 3 = "" </item> <text sentence> / items = sentences / select = text.question.currentindex </text> <text question> / items = questions </text> <trial trial> / stimulusframes = [1-3 = noreplace(sentence)] / validresponse = ("Y", "N") </trial> <block block> / trials = [1 = trial] </block> <expt expt> / blocks = [1 = block] </expt> <trial trial> / stimulusframes = [1-3 = noreplace(sentence)] / validresponse = ("Y", "N") </trial> is not supposed to "loop" through sentences. A given stimulus object like <text sentence> will select one and only one item per trial, displaying the element repeatedly during the trial will not lead to a new selection. If you wish to display three different items during a trial, you need three different stimulus objects -- e.g. <text sentence_a> to <text sentence_c> -- and have your trial display all three. Thanks. I'm afraid I don't understand. This is identical to one of the walk-through examples: the IAT script (snippets shown below). A series of items are defined and these are plugged into the text object. Then a trial object is created, in which the property 'items' references the text object. This successfully loops through the items. As far as I can see, my example has exactly the same structure as this, but it doesn't loop. There must be something wrong which causes it not to loop. <text pleasant> / items = pleasant </text> <item pleasant> / 1 = " HONOR " / 2 = " LUCKY " / 3 = " DIAMOND " / 4 = " LOYAL " / 5 = " FREEDOM " / 6 = " RAINBOW " / 7 = " LOVE " / 8 = " HONEST " / 9 = " PEACE " /10 = " HEAVEN " </item> (see http://www.millisecond.com/support/docs/v5/html/tutorials/simpleiat/iatcreatingstimuli.htm) <trial pleasant> / stimulusframes = [1=pleasant] / validresponse = ("a", "5") / correctresponse = ("5") </trial> (see http://www.millisecond.com/support/docs/v5/html/tutorials/simpleiat/iatcreatingtrials.htm)
	Reply Like 63
Dave	Dave posted 8 Years Ago ANSWER Post Details Share Post
Group: Administrators Posts: 13K, Visits: 105K	+x Nick Riches - Monday, November 20, 2017 +x Dave - Monday, November 20, 2017 +x Nick Riches - Monday, November 20, 2017 Hi I have a very basic query. My script doesn't loop through items. Below is a very simple Minimal Worked Example. It should loop through the sentences, but only displays 1. Thanks Nick <item sentences> / 1 = "A dog is a canine" / 2 = "A cat is a feline" / 3 = "A bear is ursine" </item> <item questions> / 1 = "" / 2 = "Did this sentence mention a cat?" / 3 = "" </item> <text sentence> / items = sentences / select = text.question.currentindex </text> <text question> / items = questions </text> <trial trial> / stimulusframes = [1-3 = noreplace(sentence)] / validresponse = ("Y", "N") </trial> <block block> / trials = [1 = trial] </block> <expt expt> / blocks = [1 = block] </expt> <trial trial> / stimulusframes = [1-3 = noreplace(sentence)] / validresponse = ("Y", "N") </trial> is not supposed to "loop" through sentences. A given stimulus object like <text sentence> will select one and only one item per trial, displaying the element repeatedly during the trial will not lead to a new selection. If you wish to display three different items during a trial, you need three different stimulus objects -- e.g. <text sentence_a> to <text sentence_c> -- and have your trial display all three. Thanks. I'm afraid I don't understand. This is identical to one of the walk-through examples: the IAT script (snippets shown below). A series of items are defined and these are plugged into the text object. Then a trial object is created, in which the property 'items' references the text object. This successfully loops through the items. As far as I can see, my example has exactly the same structure as this, but it doesn't loop. There must be something wrong which causes it not to loop. <text pleasant> / items = pleasant </text> <item pleasant> / 1 = " HONOR " / 2 = " LUCKY " / 3 = " DIAMOND " / 4 = " LOYAL " / 5 = " FREEDOM " / 6 = " RAINBOW " / 7 = " LOVE " / 8 = " HONEST " / 9 = " PEACE " /10 = " HEAVEN " </item> (see http://www.millisecond.com/support/docs/v5/html/tutorials/simpleiat/iatcreatingstimuli.htm) <trial pleasant> / stimulusframes = [1=pleasant] / validresponse = ("a", "5") / correctresponse = ("5") </trial> (see http://www.millisecond.com/support/docs/v5/html/tutorials/simpleiat/iatcreatingtrials.htm) No, <trial pleasant> / stimulusframes = [1=pleasant] ... </trial> is supposed to display the stimulus "pleasant" -- a single item will be shown per trial. <trial trial> / stimulusframes = [1-3 = noreplace(sentence)] ... </trial> But you seem to expect the above to display "sentence" three times, each time showing a different item. That is not the case, as I explained above. If you were to run <trial trial> three times in a row, you would get three different items -- one per instance of the trial.
	Reply Like 58
Nick Riches	Nick Riches posted 8 Years Ago ANSWER Post Details Share Post
Group: Forum Members Posts: 19, Visits: 69	+x Dave - Monday, November 20, 2017 +x Nick Riches - Monday, November 20, 2017 +x Dave - Monday, November 20, 2017 +x Nick Riches - Monday, November 20, 2017 Hi I have a very basic query. My script doesn't loop through items. Below is a very simple Minimal Worked Example. It should loop through the sentences, but only displays 1. Thanks Nick <item sentences> / 1 = "A dog is a canine" / 2 = "A cat is a feline" / 3 = "A bear is ursine" </item> <item questions> / 1 = "" / 2 = "Did this sentence mention a cat?" / 3 = "" </item> <text sentence> / items = sentences / select = text.question.currentindex </text> <text question> / items = questions </text> <trial trial> / stimulusframes = [1-3 = noreplace(sentence)] / validresponse = ("Y", "N") </trial> <block block> / trials = [1 = trial] </block> <expt expt> / blocks = [1 = block] </expt> <trial trial> / stimulusframes = [1-3 = noreplace(sentence)] / validresponse = ("Y", "N") </trial> is not supposed to "loop" through sentences. A given stimulus object like <text sentence> will select one and only one item per trial, displaying the element repeatedly during the trial will not lead to a new selection. If you wish to display three different items during a trial, you need three different stimulus objects -- e.g. <text sentence_a> to <text sentence_c> -- and have your trial display all three. Thanks. I'm afraid I don't understand. This is identical to one of the walk-through examples: the IAT script (snippets shown below). A series of items are defined and these are plugged into the text object. Then a trial object is created, in which the property 'items' references the text object. This successfully loops through the items. As far as I can see, my example has exactly the same structure as this, but it doesn't loop. There must be something wrong which causes it not to loop. <text pleasant> / items = pleasant </text> <item pleasant> / 1 = " HONOR " / 2 = " LUCKY " / 3 = " DIAMOND " / 4 = " LOYAL " / 5 = " FREEDOM " / 6 = " RAINBOW " / 7 = " LOVE " / 8 = " HONEST " / 9 = " PEACE " /10 = " HEAVEN " </item> (see http://www.millisecond.com/support/docs/v5/html/tutorials/simpleiat/iatcreatingstimuli.htm) <trial pleasant> / stimulusframes = [1=pleasant] / validresponse = ("a", "5") / correctresponse = ("5") </trial> (see http://www.millisecond.com/support/docs/v5/html/tutorials/simpleiat/iatcreatingtrials.htm) No, <trial pleasant> / stimulusframes = [1=pleasant] ... </trial> is supposed to display the stimulus "pleasant" -- a single item will be shown per trial. <trial trial> / stimulusframes = [1-3 = noreplace(sentence)] ... </trial> But you seem to expect the above to display "sentence" three times, each time showing a different item. That is not the case, as I explained above. If you were to run <trial trial> three times in a row, you would get three different items -- one per instance of the trial. Okay. I see now. The series needs to be specified for the block object, not the trial object. The following code works... <item sentences> / 1 = "A dog is a canine" / 2 = "A cat is a feline" / 3 = "A bear is ursine" </item> <item questions> / 1 = "" / 2 = "Did this sentence mention a cat?" / 3 = "" </item> <text sentence> / items = sentences </text> <text question> / items = questions </text> <trial trial> / stimulusframes = [1 = sentence] / validresponse = ("Y", "N") </trial> <block block> / trials = [1-3 = trial] </block>
	Reply Like 65