[solved] correct variable is "undefined" and acc variable is "0"

Comments

• Edwin

  June 2014 edited 5:43AM

  Hi,

  Could you make sure that there is one (and only one!) correct response listed in the keyboard_response item?

  If you require multiple responses to be correct, please use the following code in the Run phase of an inline_script placed directly after the keyboard_response:

  # check if the response is the same as correct response 1
  if self.get("response") == self.get("corresp1"):
      exp.set("correct", 1)
  # check if the response is the same as correct response 2
  elif self.get("response") == self.get("corresp2"):
      exp.set("correct", 1)
  # if the response is not one of the correct responses, set correct to 0
  else:
      exp.set("correct", 0)
  

  This inline_script assumes that you have defined the correct responses in two variables in your loop: corresp1 and corresp2.

  Good luck!
• gabor1

  June 2014 edited 5:43AM

  Thanks! That worked for correct, but the acc variable is still saying "0" every time. Is there any way to fix that too?
• Edwin

  June 2014 edited 5:43AM

  Yes, there is. This will require some manual bookkeeping, but we will rely on some variables OpenSesame creates and updates behind the screens:

  # check if the response is the same as correct response 1
  if self.get("response") == self.get("corresp1"):
      exp.set("correct", 1)
  # check if the response is the same as correct response 2
  elif self.get("response") == self.get("corresp2"):
      exp.set("correct", 1)
  # if the response is not one of the correct responses, set correct to 0
  else:
      exp.set("correct", 0)
  
  # increase the total amount of responses by one
  self.experiment.total_responses += 1
  # if the response was correct, increase the amount of correct responses by one
  if self.get("correct") == 1:
      self.experiment.total_correct += 1
  # calculate the accuracy
  self.experiment.acc = 100.0 * self.experiment.total_correct / self.experiment.total_responses
  # save the accuracy under the two variables OpenSesame saves it to
  exp.set("acc", self.experiment.acc)
  exp.set("accuracy", self.experiment.acc)
  

  Good luck!
• gabor1

  June 2014 edited 5:43AM

  It worked thanks for all your help, Edwin!