By KatrinaMcDonough - 8/4/2020
Hello,
I am trying to program a conditional statement for the correct response value, so that participants with odd and even subject numbers have different tasks - either press the spacebar or don't respond. However, the I get a message saying "'noresponse' Expression contains an unknown element or property name." It works when I select a different response (i.e. changing "noresponse" to just a different key).
<shape redcircle>
/ shape = circle
/ color = red
/ size = (20%, 20%)
/ position = (50%, 50%)
</shape>
<shape bluecircle>
/ shape = circle
/ color = blue
/ size = (20%, 20%)
/ position = (50%, 50%)
</shape>
<text errormessage>
/ items = ("incorrect")
</text>
<text correctmessage>
/ items = ("correct")
</text>
<expressions>
/CorrectCounterbalanced1 = if ( floor(mod(script.subjectid, 2)) != 0 ) {57;} else {noresponse;}
</expressions>
<trial circles>
/ stimulusframes = [1 = redcircle]
/ inputdevice = keyboard
/ validresponse = (57, noresponse)
/ correctresponse = (expressions.CorrectCounterbalanced1)
/ trialduration = 2000
/ errormessage = true(errormessage, 2000)
/ correctmessage = true(correctmessage, 2000)
</trial>
<block block>
/ trials = [1-5=circles]
</block>
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By Dave - 8/4/2020
+xHello, I am trying to program a conditional statement for the correct response value, so that participants with odd and even subject numbers have different tasks - either press the spacebar or don't respond. However, the I get a message saying "'noresponse' Expression contains an unknown element or property name." It works when I select a different response (i.e. changing "noresponse" to just a different key). <shape redcircle> / shape = circle / color = red / size = (20%, 20%) / position = (50%, 50%) </shape> <shape bluecircle> / shape = circle / color = blue / size = (20%, 20%) / position = (50%, 50%) </shape> <text errormessage> / items = ("incorrect") </text> <text correctmessage> / items = ("correct") </text> <expressions> /CorrectCounterbalanced1 = if ( floor(mod(script.subjectid, 2)) != 0 ) {57;} else {noresponse;} </expressions> <trial circles> / stimulusframes = [1 = redcircle] / inputdevice = keyboard / validresponse = (57, noresponse) / correctresponse = (expressions.CorrectCounterbalanced1) / trialduration = 2000 / errormessage = true(errormessage, 2000) / correctmessage = true(correctmessage, 2000) </trial> <block block> / trials = [1-5=circles] </block>
0 is the proper indicator for no response. I.e.
<expressions>
/CorrectCounterbalanced1 = if ( floor(mod(script.subjectid, 2)) != 0 ) {57;} else {0;}
</expressions>
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By KatrinaMcDonough - 8/4/2020
+x+xHello, I am trying to program a conditional statement for the correct response value, so that participants with odd and even subject numbers have different tasks - either press the spacebar or don't respond. However, the I get a message saying "'noresponse' Expression contains an unknown element or property name." It works when I select a different response (i.e. changing "noresponse" to just a different key). <shape redcircle> / shape = circle / color = red / size = (20%, 20%) / position = (50%, 50%) </shape> <shape bluecircle> / shape = circle / color = blue / size = (20%, 20%) / position = (50%, 50%) </shape> <text errormessage> / items = ("incorrect") </text> <text correctmessage> / items = ("correct") </text> <expressions> /CorrectCounterbalanced1 = if ( floor(mod(script.subjectid, 2)) != 0 ) {57;} else {noresponse;} </expressions> <trial circles> / stimulusframes = [1 = redcircle] / inputdevice = keyboard / validresponse = (57, noresponse) / correctresponse = (expressions.CorrectCounterbalanced1) / trialduration = 2000 / errormessage = true(errormessage, 2000) / correctmessage = true(correctmessage, 2000) </trial> <block block> / trials = [1-5=circles] </block> 0 is the proper indicator for no response. I.e. <expressions> /CorrectCounterbalanced1 = if ( floor(mod(script.subjectid, 2)) != 0 ) {57;} else {0;} </expressions>
Thank you. I have tried this, but it still says the response (or lack of in this case) is incorrect. i.e. when I am subject 2 and I do not respond, it shows the error message.
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By Dave - 8/4/2020
+x+x+xHello, I am trying to program a conditional statement for the correct response value, so that participants with odd and even subject numbers have different tasks - either press the spacebar or don't respond. However, the I get a message saying "'noresponse' Expression contains an unknown element or property name." It works when I select a different response (i.e. changing "noresponse" to just a different key). <shape redcircle> / shape = circle / color = red / size = (20%, 20%) / position = (50%, 50%) </shape> <shape bluecircle> / shape = circle / color = blue / size = (20%, 20%) / position = (50%, 50%) </shape> <text errormessage> / items = ("incorrect") </text> <text correctmessage> / items = ("correct") </text> <expressions> /CorrectCounterbalanced1 = if ( floor(mod(script.subjectid, 2)) != 0 ) {57;} else {noresponse;} </expressions> <trial circles> / stimulusframes = [1 = redcircle] / inputdevice = keyboard / validresponse = (57, noresponse) / correctresponse = (expressions.CorrectCounterbalanced1) / trialduration = 2000 / errormessage = true(errormessage, 2000) / correctmessage = true(correctmessage, 2000) </trial> <block block> / trials = [1-5=circles] </block> 0 is the proper indicator for no response. I.e. <expressions> /CorrectCounterbalanced1 = if ( floor(mod(script.subjectid, 2)) != 0 ) {57;} else {0;} </expressions> Thank you. I have tried this, but it still says the response (or lack of in this case) is incorrect. i.e. when I am subject 2 and I do not respond, it shows the error message.
You need to use /iscorrectresponse in your <trial>, not /correctresponse:
<trial circles>
/ stimulusframes = [1 = redcircle]
/ inputdevice = keyboard
/ validresponse = (57, 0)
/ iscorrectresponse = [trial.circles.response == expressions.CorrectCounterbalanced1]
/ trialduration = 2000
/ errormessage = true(errormessage, 2000)
/ correctmessage = true(correctmessage, 2000)
</trial>
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By KatrinaMcDonough - 8/4/2020
+x+x+x+xHello, I am trying to program a conditional statement for the correct response value, so that participants with odd and even subject numbers have different tasks - either press the spacebar or don't respond. However, the I get a message saying "'noresponse' Expression contains an unknown element or property name." It works when I select a different response (i.e. changing "noresponse" to just a different key). <shape redcircle> / shape = circle / color = red / size = (20%, 20%) / position = (50%, 50%) </shape> <shape bluecircle> / shape = circle / color = blue / size = (20%, 20%) / position = (50%, 50%) </shape> <text errormessage> / items = ("incorrect") </text> <text correctmessage> / items = ("correct") </text> <expressions> /CorrectCounterbalanced1 = if ( floor(mod(script.subjectid, 2)) != 0 ) {57;} else {noresponse;} </expressions> <trial circles> / stimulusframes = [1 = redcircle] / inputdevice = keyboard / validresponse = (57, noresponse) / correctresponse = (expressions.CorrectCounterbalanced1) / trialduration = 2000 / errormessage = true(errormessage, 2000) / correctmessage = true(correctmessage, 2000) </trial> <block block> / trials = [1-5=circles] </block> 0 is the proper indicator for no response. I.e. <expressions> /CorrectCounterbalanced1 = if ( floor(mod(script.subjectid, 2)) != 0 ) {57;} else {0;} </expressions> Thank you. I have tried this, but it still says the response (or lack of in this case) is incorrect. i.e. when I am subject 2 and I do not respond, it shows the error message. You need to use /iscorrectresponse in your <trial>, not /correctresponse: <trial circles> / stimulusframes = [1 = redcircle] / inputdevice = keyboard / validresponse = (57, 0) / iscorrectresponse = [trial.circles.response == expressions.CorrectCounterbalanced1]/ trialduration = 2000 / errormessage = true(errormessage, 2000) / correctmessage = true(correctmessage, 2000) </trial>
Problem solved! Thanks!
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