Counterbalancing more than 3 conditions - "item.get() has been removed in OpenSesame 4"

Comments

• sebastiaan

  August 2023

  Hi @ns111021 ,

  Using self.get() to access experimental variables was already deprecated for a long time, and has now been completely removed in OpenSesame 4.0. Experimental variables are simply global variables, which means that you should be able to use the following run-if expression: b1 == count_mainsequence.

  See also:

  • https://osdoc.cogsci.nl/4.0/manual/variables/

  Hope this helps!

  — Sebastiaan

  
  
  Check out SigmundAI.eu for our OpenSesame AI assistant!
  
• ns111021

  August 2023

  Hi sebastiaan,

  Thank you for the quick response. Ultimately I want to counterbalance 4 blocks: It won't let me attach photos here so here is my code pasted below. It says there is an issue with the " :" in subject_nr % 4 == 1:

  Code for in-line script placed in same spot as video:

  subject_nr % 4 == 1:

  b1 = 0

  b2 = 1

  b3 = 2

  b4 = 3

  elif subject_nr % 4 == 2:

  (same notation as above but b1=1, b2=2, b3=3, b4=0)

  elif subject_nr % 4 == 3:

  (same notation as above but b1=2, b2=3, b3=0, b4=1)

  else:

  b1 = 3

  b2 = 0

  b3 = 1

  b4 = 2

  b1 = 'b1'

  b2 = 'b2'

  b3 = 'b3'

  b4 = 'b4'

  Then under MainSequence I followed your recommendation:

  Block1 (run if column-->) b1 == 'count_MainSequence'

  Block 2 (run if column-->) b2 == 'count_MainSequence'

  Block 3 (run if column-->) b3 == 'count_MainSequence'

  Block 4 (run if column-->) b4 == 'count_MainSequence'

  
  

  Thank you so much!

  Nate
• sebastiaan

  August 2023

  Hi @ns111021 ,

  The example that I gave is for a run-if expression, which is the short one-line Python expression that you can use in sequence items to indicate whether or not an item should be run. Your example seems to refer to an inline_script , which is a full Python script. My recommendation would be to take a step back and walk through he intermediate Python tutorial. All of the concepts that you are running into now are explained there.

  • https://osdoc.cogsci.nl/4.0/tutorials/intermediate/

  See also:

  • https://osdoc.cogsci.nl/4.0/manual/python/about/

  Once you have familiarized yourself with the basics of inline_script and run-if expressions, don't hesitate to post further questions here!

  — Sebastiaan

  
  
  Check out SigmundAI.eu for our OpenSesame AI assistant!