Organising branches within branches

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Organising branches within branches

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a.finlay	a.finlay posted 3 Years Ago Topic Details Share Topic
Group: Forum Members Posts: 1, Visits: 20	I am creating an experiment requiring the following layout: Where trial 1 will lead to one of the trials 2-5 depending on the participant’s choice And trial 2 will lead to one of the survey pages 1-8 depending on the participant’s choice and so on. I have used branches at the trial level, for example trial 1… <trial choice> / stimulusframes = [5=frontpage, logo, coffee, hotchoc, tea, iced] / inputdevice = mouse / validresponse = (coffee, hotchoc, tea, iced) / branch = [ if (trial.choice.response==picture.coffee) trial.choicecoffee] / branch = [ if (trial.choice.response==picture.hotchoc) trial.choice.hotchoc] / branch = [ if (trial.choice.response==picture.tea) trial.choice.tea] / branch = [ if (trial.choice.response==picture.iced) trial.choiceiced] </trial> … and put all of these trials into a block. When I do this, all trials run in the order they are presented rather than following the specified branches. I have tried putting all trials in separate blocks and using branches at a block level but that still hasn’t worked. Any help would be much appreciated! Thanks 😊
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Dave	Dave posted 3 Years Ago ANSWER Post Details Share Post
Group: Administrators Posts: 13K, Visits: 105K	+x a.finlay - 6/7/2022 I am creating an experiment requiring the following layout: Where trial 1 will lead to one of the trials 2-5 depending on the participant’s choice And trial 2 will lead to one of the survey pages 1-8 depending on the participant’s choice and so on. I have used branches at the trial level, for example trial 1… <trial choice> / stimulusframes = [5=frontpage, logo, coffee, hotchoc, tea, iced] / inputdevice = mouse / validresponse = (coffee, hotchoc, tea, iced) / branch = [ if (trial.choice.response==picture.coffee) trial.choicecoffee] / branch = [ if (trial.choice.response==picture.hotchoc) trial.choice.hotchoc] / branch = [ if (trial.choice.response==picture.tea) trial.choice.tea] / branch = [ if (trial.choice.response==picture.iced) trial.choiceiced] </trial> … and put all of these trials into a block. When I do this, all trials run in the order they are presented rather than following the specified branches. I have tried putting all trials in separate blocks and using branches at a block level but that still hasn’t worked. Any help would be much appreciated! Thanks 😊 > and put all of these trials into a block. Only <trial choice> belongs in the <block>'s /trials. Nothing else.
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Dave	Dave posted 3 Years Ago ANSWER Post Details Share Post
Group: Administrators Posts: 13K, Visits: 105K	+x Dave - 6/7/2022 +x a.finlay - 6/7/2022 I am creating an experiment requiring the following layout: Where trial 1 will lead to one of the trials 2-5 depending on the participant’s choice And trial 2 will lead to one of the survey pages 1-8 depending on the participant’s choice and so on. I have used branches at the trial level, for example trial 1… <trial choice> / stimulusframes = [5=frontpage, logo, coffee, hotchoc, tea, iced] / inputdevice = mouse / validresponse = (coffee, hotchoc, tea, iced) / branch = [ if (trial.choice.response==picture.coffee) trial.choicecoffee] / branch = [ if (trial.choice.response==picture.hotchoc) trial.choice.hotchoc] / branch = [ if (trial.choice.response==picture.tea) trial.choice.tea] / branch = [ if (trial.choice.response==picture.iced) trial.choiceiced] </trial> … and put all of these trials into a block. When I do this, all trials run in the order they are presented rather than following the specified branches. I have tried putting all trials in separate blocks and using branches at a block level but that still hasn’t worked. Any help would be much appreciated! Thanks 😊 > and put all of these trials into a block. Only <trial choice> belongs in the <block>'s /trials. Nothing else. The basic structure is really simple and goes like this: <defaults> / inputdevice = mouse </defaults> <block example> / trials = [1=choice] // run the choice trial </block> <trial choice> / stimulusframes = [1=a, b, c, pickone] / validresponse = (a, b, c) / branch = [ // go to follow-up trial based on response to the choice trial if (trial.choice.response == "a") { return trial.choiceA; } else if (trial.choice.response == "b") { return trial.choiceB; } else if (trial.choice.response == "c") { return trial.choiceC; }; ] </trial> <trial choiceA> / stimulusframes = [1=a1, a2, wherenext] / validresponse = (a1, a2) / branch = [ // go to follow-up surveypage based on response if (trial.choiceA.response == "a1") { return surveypage.a1page; } else if (trial.choiceA.response == "a2") { return surveypage.a2page; }; ] </trial> <trial choiceB> / stimulusframes = [1=b1, b2, wherenext] / validresponse = (b1, b2) / branch = [ // go to follow-up surveypage based on response if (trial.choiceB.response == "b1") { return surveypage.b1page; } else if (trial.choiceB.response == "b2") { return surveypage.b2page; }; ] </trial> <trial choiceC> / stimulusframes = [1=c1, c2, wherenext] / validresponse = (c1, c2) / branch = [ // go to follow-up surveypage based on response if (trial.choiceC.response == "c1") { return surveypage.c1page; } else if (trial.choiceC.response == "c2") { return surveypage.c2page; }; ] </trial> <surveypage a1page> / caption = "You've reached surveypage A1" / showpagenumbers = false / showquestionnumbers = false </surveypage> <surveypage a2page> / caption = "You've reached surveypage A2" / showpagenumbers = false / showquestionnumbers = false </surveypage> <surveypage b1page> / caption = "You've reached surveypage B1" / showpagenumbers = false / showquestionnumbers = false </surveypage> <surveypage b2page> / caption = "You've reached surveypage B2" / showpagenumbers = false / showquestionnumbers = false </surveypage> <surveypage c1page> / caption = "You've reached surveypage C1" / showpagenumbers = false / showquestionnumbers = false </surveypage> <surveypage C2page> / caption = "You've reached surveypage C2" / showpagenumbers = false / showquestionnumbers = false </surveypage> <text a> / items = ("A") / position = (40%, 50%) </text> <text b> / items = ("B") / position = (50%, 50%) </text> <text c> / items = ("C") / position = (60%, 50%) </text> <text a1> / items = ("A1") / position = (45%, 50%) </text> <text a2> / items = ("A2") / position = (55%, 50%) </text> <text b1> / items = ("B1") / position = (45%, 50%) </text> <text b2> / items = ("B2") / position = (55%, 50%) </text> <text c1> / items = ("C1") / position = (45%, 50%) </text> <text c2> / items = ("C2") / position = (55%, 50%) </text> <text pickone> / items = ("Pick one:") / position = (50%, 20%) </text> <text wherenext> / items = ("Where to next?") / position = (50%, 20%) </text>
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