RE: how to stop a trial conditional on participants' response

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RE: how to stop a trial conditional on participants' response

how to stop a trial conditional on participants' response

Author	Message
jell8ie	jell8ie posted 7 Years Ago Topic Details Share Topic
Group: Forum Members Posts: 5, Visits: 15	Hi all, I am trying to create a trial where participants enter codes - followed by pressing 'next' for each code. When they want to stop entering codes, they should press 'stop'. This means I need to have page that shows them a place where they can enter the codes, and below a button that says 'next' and a button that says 'stop' The script with only a button for next, works fine. But I cannot figure out how to create two buttons and how to create a command that stops the trial when they press 'stop'. Here's what I have so far: <openended codes> /stimulusframes=[1=codes,input] /position = (50%, 50%) /linelength = 40 /numlines = 1 /skip = [values.time > 600000] /ontrialend = [values.time = values.time + openended.codes.latency] /ontrialend = [values.input = values.input + 1] /buttonlabel = "next" </openended> Any help would be highly appreciated!
	Reply Like 46
Dave	Dave posted 7 Years Ago ANSWER Post Details Share Post
Group: Administrators Posts: 13K, Visits: 104K	+x jell8ie - Monday, January 30, 2017 Hi all, I am trying to create a trial where participants enter codes - followed by pressing 'next' for each code. When they want to stop entering codes, they should press 'stop'. This means I need to have page that shows them a place where they can enter the codes, and below a button that says 'next' and a button that says 'stop' The script with only a button for next, works fine. But I cannot figure out how to create two buttons and how to create a command that stops the trial when they press 'stop'. Here's what I have so far: <openended codes> /stimulusframes=[1=codes,input] /position = (50%, 50%) /linelength = 40 /numlines = 1 /skip = [values.time > 600000] /ontrialend = [values.time = values.time + openended.codes.latency] /ontrialend = [values.input = values.input + 1] /buttonlabel = "next" </openended> Any help would be highly appreciated! You cannot add and additional button to an <openended> element. What you can do is instruct the participant to e.g. simply type "stop" into the <openended>'s text box and then /stop the block based on that response. <block myblock> / trials = [1 = myopenended] / stop = [openended.myopenended.response == "stop"] </block> <openended myopenended> / stimulusframes = [1=mytext] / branch = [openended.myopenended] </openended> <text mytext> / items = ("Enter something. To quit, type ~"stop~" into the textbox") / position = (50%, 40%) </text> Edited 7 Years Ago by Dave
	Reply Like 43
jell8ie	jell8ie posted 7 Years Ago ANSWER Post Details Share Post
Group: Forum Members Posts: 5, Visits: 15	+x Dave - Monday, January 30, 2017 +x jell8ie - Monday, January 30, 2017 Hi all, I am trying to create a trial where participants enter codes - followed by pressing 'next' for each code. When they want to stop entering codes, they should press 'stop'. This means I need to have page that shows them a place where they can enter the codes, and below a button that says 'next' and a button that says 'stop' The script with only a button for next, works fine. But I cannot figure out how to create two buttons and how to create a command that stops the trial when they press 'stop'. Here's what I have so far: <openended codes> /stimulusframes=[1=codes,input] /position = (50%, 50%) /linelength = 40 /numlines = 1 /skip = [values.time > 600000] /ontrialend = [values.time = values.time + openended.codes.latency] /ontrialend = [values.input = values.input + 1] /buttonlabel = "next" </openended> Any help would be highly appreciated! You cannot add and additional button to an <openended> element. What you can do is instruct the participant to e.g. simply type "stop" into the <openended>'s text box and then /stop the block based on that response. <block myblock> / trials = [1 = myopenended] / stop = [openended.myopenended.response == "stop"] </block> <openended myopenended> / stimulusframes = [1=mytext] / branch = [openended.myopenended] </openended> <text mytext> / items = ("Enter something. To quit, type ~"stop~" into the textbox") / position = (50%, 40%) </text> thanks a lot! good to know its not possible. I previously used to instruct them to type 'stop' - but I work with kids and this turns out too difficult when they have to work independently. Any ideas on other options?
	Reply Like 41
Dave	Dave posted 7 Years Ago ANSWER Post Details Share Post
Group: Administrators Posts: 13K, Visits: 104K	+x jell8ie - Monday, January 30, 2017 +x Dave - Monday, January 30, 2017 +x jell8ie - Monday, January 30, 2017 Hi all, I am trying to create a trial where participants enter codes - followed by pressing 'next' for each code. When they want to stop entering codes, they should press 'stop'. This means I need to have page that shows them a place where they can enter the codes, and below a button that says 'next' and a button that says 'stop' The script with only a button for next, works fine. But I cannot figure out how to create two buttons and how to create a command that stops the trial when they press 'stop'. Here's what I have so far: <openended codes> /stimulusframes=[1=codes,input] /position = (50%, 50%) /linelength = 40 /numlines = 1 /skip = [values.time > 600000] /ontrialend = [values.time = values.time + openended.codes.latency] /ontrialend = [values.input = values.input + 1] /buttonlabel = "next" </openended> Any help would be highly appreciated! You cannot add and additional button to an <openended> element. What you can do is instruct the participant to e.g. simply type "stop" into the <openended>'s text box and then /stop the block based on that response. <block myblock> / trials = [1 = myopenended] / stop = [openended.myopenended.response == "stop"] </block> <openended myopenended> / stimulusframes = [1=mytext] / branch = [openended.myopenended] </openended> <text mytext> / items = ("Enter something. To quit, type ~"stop~" into the textbox") / position = (50%, 40%) </text> thanks a lot! good to know its not possible. I previously used to instruct them to type 'stop' - but I work with kids and this turns out too difficult when they have to work independently. Any ideas on other options? You can run a separate <trial> after each <openended>. That trial could display two response options (clickable <text> elements): One for "next" which would continue the script as usual, one for "stop" which would terminate the <block>. That's about the only alternative I can think of.
	Reply Like 44