Meeting a Criterion | PsyToolkit

jmj0228
New Member

Posts: 3

Meeting a Criterion Jan 28, 2021 21:09:09 GMT

Quote

Post by jmj0228 on Jan 28, 2021 21:09:09 GMT

Hello

I was wondering how I can repeat the whole task if a percentage criterion was not met.

How I want the experiment to be implemented.
- Subject does the Wisconsin Card Sorting Test (wcst) for 50 trials
- at the end of 50 trials provide a visual feedback
- if they did the task 85% or better then this part is done
- if they did the task 84% or worse then another 50 trials are done again & repeat until 85% is met

CODE SO FAR
table wcsttable
include table.txt

# one line of the table consists of the following information
# column 1 : card
# column 2 : response (bitmap to be clicked 1 to 4)
# colomn 3 : response in previous task (or 0 if no previous task)
# column 4 : trial number in a task sequence, 1 is first, thus rule switch
# column 5 : name of the task
# column 6 : stimulus description

task wcst
table wcsttable # use the table wcsttable
delay 1000 # wait 1 second
draw off # show next 5 bitmaps at once
show bitmap circle1red -175 -100 # bitmap number 1
show bitmap triangle2green -25 -100 # bitmap number 2
show bitmap cross3blue 125 -100 # bitmap number 3
show bitmap star4yellow 275 -100 # bitmap number 4
show bitmap @1 -300 200 # bitmap number 5
draw on # now show them
set $a 0 # once clicked, $a will be clicked-bitmap number
readmouse l @2 10000 range 1 4 # wait for left mouse click on rect 1-4 for 10sec
set $a under MOUSE_X MOUSE_Y # which bitmap was clicked?
clear 5 # erase the last bitmap from screen
if $a == 1 # if bitmap 1 was clicked, set variable newx to -175
set $newx -175
fi # end of if statement
if $a == 2
set $newx -25
fi
if $a == 3
set $newx 125
fi
if $a == 4
set $newx 275
fi
if $a > 0 && STATUS != TIMEOUT
show bitmap @1 $newx 25 # show the same card (6) underneath the one clicked
fi
delay 500 # keep it for 500 ms
if STATUS == CORRECT # if match was correct
sound good # give vocal feedback
show bitmap correct $newx 100 # show message "correct", bitmap 7
clear -1
delay 200
show bitmap correct $newx 100 # show message "correct", bitmap 7
fi
if STATUS == WRONG # if match was incorrect
sound wrong # give vocal feedback
show bitmap error $newx 100 # show message "error", bitmap 7
delay 200
hide -1
delay 200
unhide -1
fi
if STATUS == TIMEOUT # if match was incorrect
sound wrong # give vocal feedback
show bitmap tooslow 75 100 # show message "timeout", bitmap 7
delay 200
clear -1
delay 200
show bitmap tooslow 75 100 # show message "error", bitmap 8
fi
delay 1000 # wait a second for feedback to be read/heard
clear 6 7 # clear feedback card (6) and feedback message (7)
## determine what type of error this was
set $anyerror 0
set $nonperseverationerror 0
set $perseverationerror 0
if STATUS != CORRECT
set $anyerror 1
if $a == @3
set $perseverationerror 1
fi
if $a != @3
set $nonperseverationerror 1
fi
fi
if &NumCorrect < 85
error
fi
save @1 @2 @3 @4 @5 @6 RT STATUS $a $anyerror $perseverationerror $nonperseverationerror

block training #teaching phase
message wcst_title
pager instruction1 instruction2
tasklist
wcst 50 all_before_repeat
end
feedback
set &NumCorrect sum c10
set &NumCorrect perc ; select c10 == 1
text 0 0 &NumCorrect ; prefix "Percentage Correct: " ; postfix "%"
end

PsyToolkit
Administrator

Posts: 548

Meeting a Criterion Jan 30, 2021 16:29:24 GMT

Quote

Post by PsyToolkit on Jan 30, 2021 16:29:24 GMT

I would take the following approach:

- in the block, set the trial number not to 50 but to much higher (there will be a maximum number, if not, you can set it to, say 9999)

- in the task, keep a counter (call it "&my_trial_count" which you increase each trial with set &my_trial_count increase) and when it is at 50, check if criterion was reached. If it was reached, "end" the tasklist (use "end tasklist")

- if the criterion was not reached, just set &my_trial_count back to 0

That would do it.

jmj0228
New Member

Posts: 3

Meeting a Criterion Feb 10, 2021 18:31:48 GMT

Quote

Post by jmj0228 on Feb 10, 2021 18:31:48 GMT

Thank you for the reply! I have been trying to put the code in. My code is able to compile successfully, however, it is still not running the way I want it to. Can you please read over the code and see where I have gone wrong?

Right now the code is going through the task and giving me feedback at the end, but is not restarting if it doesn't meet the criterion.

task wcst
table wcsttable # use the table wcsttable
set &my_trial_count increase
delay 1000 # wait 1 second
draw off # show next 5 bitmaps at once
show bitmap circle1red -175 -100 # bitmap number 1
show bitmap triangle2green -25 -100 # bitmap number 2
show bitmap cross3blue 125 -100 # bitmap number 3
show bitmap star4yellow 275 -100 # bitmap number 4
show bitmap @1 -300 200 # bitmap number 5
draw on # now show them
set $a 0 # once clicked, $a will be clicked-bitmap number
readmouse l @2 10000 range 1 4 # wait for left mouse click on rect 1-4 for 10sec
set $a under MOUSE_X MOUSE_Y # which bitmap was clicked?
clear 5 # erase the last bitmap from screen
if $a == 1 # if bitmap 1 was clicked, set variable newx to -175
set $newx -175
fi # end of if statement
if $a == 2
set $newx -25
fi
if $a == 3
set $newx 125
fi
if $a == 4
set $newx 275
fi
if $a > 0 && STATUS != TIMEOUT
show bitmap @1 $newx 25 # show the same card (6) underneath the one clicked
fi
delay 500 # keep it for 500 ms
if STATUS == CORRECT # if match was correct
set &correct_count increase
sound good # give vocal feedback
show bitmap correct $newx 100 # show message "correct", bitmap 7
clear -1
delay 200
show bitmap correct $newx 100 # show message "correct", bitmap 7
fi
if STATUS == WRONG # if match was incorrect
sound wrong # give vocal feedback
show bitmap error $newx 100 # show message "error", bitmap 7
delay 200
hide -1
delay 200
unhide -1
fi
if STATUS == TIMEOUT # if match was incorrect
sound wrong # give vocal feedback
show bitmap tooslow 75 100 # show message "timeout", bitmap 7
delay 200
clear -1
delay 200
show bitmap tooslow 75 100 # show message "error", bitmap 8
fi
delay 1000 # wait a second for feedback to be read/heard
clear 6 7 # clear feedback card (6) and feedback message (7)
## determine what type of error this was
set $anyerror 0
set $nonperseverationerror 0
set $perseverationerror 0
if STATUS != CORRECT
set $anyerror 1
if $a == @3
set $perseverationerror 1
fi
if $a != @3
set $nonperseverationerror 1
fi
fi
set &NumCorrect expression ( &correct_count / &my_trial_count ) * 100
if &my_trial_count > 49 && &NumCorrect >= 85
end tasklist
if &NumCorrect <= 84
set &my_trial_count 0
fi
fi
save @1 @2 @3 @4 @5 @6 RT STATUS $a $anyerror $perseverationerror $nonperseverationerror

block training #teaching phase
message wcst_title
pager instruction1 instruction2
tasklist
wcst 50 fixed
end
feedback
set &NumCorrect perc ; select c10 == 1
text 0 0 &NumCorrect ; prefix "Percentage Correct: " ; postfix "%"
end