Online exp- "Int()" cannot work--Goal: Code correct as "1" and incorrect as "0"

[Ye1993]

1. Exp background
   #mouse-click #picture

Participants’ task: use mouse to click 1 out of 4 pictures;
Exp’s task:
a. compare the selected picture with the target in the condition file;
b. generate a “score” column
–correct coded as 1,
–incorrect coded as 0.

2. Offline–able to get “score” if being run in Builder
   The line works:
   “thisExp.addData(‘score’, int(correctAcc == imageTest1))”

int(target pic in condition file == pic shown)

Able to get the “score”:

3. Online–Unable to get “score” if being run in Pavlovia
   The line does not work:
   “psychoJS.experiment.addData(‘score’, int(correctAcc == imageTest1))”

The problem lies in:
int(target pic in condition file == pic shown)

Unable to get the “score”:

Thank you for reading my question. Appreciate your answer and help.

[wakecarter]

One thing I’ve found is that Javascript seems less able to evaluate and assign at the same time. Perhaps you could edit your Python code to:

score = (correctAcc == imageTest1)
psychoJS.experiment.addData(‘score’, int(score))

or even

if correctAcc == imageTest1:
     score = 1
else:
     score = 0
psychoJS.experiment.addData(‘score’, score)

Best wishes,

Wakefield

[Ye1993]

Hi Wakefield, much appreciate your patience.

I’ve tried both ways as you suggested:

First way score = (correctAcc == imageTest1)
psychoJS.experiment.addData(‘score’, int(score))

This way works only when I delete “int ()”, the output in “score” column is TRUE or FALSE.

Adding “int()” will generate “NaN”

Second way
“if correctAcc == imageTest1:
score = 1
else:
score = 0
psychoJS.experiment.addData(‘score’, score)”

This code cannot be recognized by the coder (thus unable to generate “RT”, “clicked”, and “score”)

The error might be related to nested if statement;
So I tried the following ways
a. replacing the “if else statement” with the following form

*It does not work.

b. Wrting only “if- else” statement

*Seems to not work.

With no prior knowledge of syntax, I can only learn through trials and errors, and imitation, which leads to wrong syntax. Appreciate your patience.

Many thanks.
Ye

[Ye1993]

Hi Wakefiled, I succeeded!

This is my code–round 6!

I copied the right syntax here if anyone with similar problem needs help in the future

if image_1.contains(mouse_record):
    continueRoutine = False
    psychoJS.experiment.addData ('RT', t)
    psychoJS.experiment.addData('clicked', imageTest1)
    if correctAcc == imageTest1 :
     score = 1
    else :
     score = 0
    psychoJS.experiment.addData('score', score)
elif image_2.contains(mouse_record):
    continueRoutine = False
    psychoJS.experiment.addData ('RT', t)
    psychoJS.experiment.addData('clicked', imageTest2)
    if correctAcc == imageTest2 :
     score = 1
    else :
     score = 0
    psychoJS.experiment.addData('score', score)
elif image_3.contains(mouse_record):
    continueRoutine = False
    psychoJS.experiment.addData ('RT', t)
    psychoJS.experiment.addData('clicked', imageTest3)
    if correctAcc == imageTest3 :
     score = 1
    else :
     score = 0
    psychoJS.experiment.addData('score', score)
elif image_4.contains(mouse_record):
    continueRoutine = False
    psychoJS.experiment.addData ('RT', t)
    psychoJS.experiment.addData('clicked', imageTest4)
    if correctAcc == imageTest4 :
     score = 1
    else :
     score = 0
    psychoJS.experiment.addData('score', score)

And IT WORKED!

Thank you so much for your help~! Stay well.
Ye

[wakecarter]

Excellent.

Can you point to the aspect of my Python syntax that didn’t translate to working PsychoJS?

Best wishes,

Wakefield

[Ye1993]

@wakecarter

score = (correctAcc == imageTest1) psychoJS.experiment.addData(‘score’, int(score))

Thank you. Yes.

1. This python code cannot run, due to the format of the single quotation mark on “score”.
I copied and pasted yours, and the single quotation mark did not turn into purple.

Deleting the previous one, and retyping a new one will work.

2. This python code didn’t run because of the position of “if” and “else”.

Making the “if” “else” statement parallel works.

3. So, I changed the location of the inserted “if” and “else” in the previous wrong syntax, and then it worked.

Before:

After:

Hope it answered your question. Thanks for your help.