Feedback msg not working correctly online

Coding
1

My feedback message works fine when I run the experiment on my computer, but when I run it on Pavlovia, the feedback message is always “wrong.” I think it’s probably because I translated the python code incorrectly to js code. How would you translate the python code below to JS code? Thanks!

Here’s my python code for feedback:

if not key_resp.rt:
    msg = 'Failed to respond'
elif key_resp.keys[-1]==corrAns:
    msg = 'Correct!'
else:
    msg = 'Wrong!'
2

Hi @CatK, your JS code is ok (from previous post), but its how you have set your correct answer variable - you need to set corrAns as a string rather than Number. This is because the JS code uses strict equality checks that do not ignore type, so a string and number can never be equal, even when comparing 1 vs “1”. So, if corrAns === 1 and resp_key.keys === 1, they will not be equal and you will not log a correct answer for your keyboard.

If you want to know more, look up strict vs loose (=== vs ==) equality checks in JavaScript.

3

Thank you! But after I changed the value of corrAns to string, it still doesn’t work. What else could be wrong? Or am I not changing the code correctly? Thankstesting to del.psyexp|attachment (21.4 KB)

4

Thank you! But after I changed the value of corrAns to string, it still doesn’t work. What else could be wrong with my code? Or am I not changing the code correctly? Thanks!

testing to del.psyexp (21.4 KB)

5

Ok, well if you have not already done so, you will need to change the values to string in the if statement as well, in the codeLearn routine.

6

I did it but it still doesn’t work.

7

Ok great, well that version you posted works for me, so I think perhaps you need to refresh your browser cache using CTRL + F5 (if using Windows) to get the most up to date version.

E.g., here is running version you just uploaded

https://run.pavlovia.org/dvbridges/testing_catk2/html/

By the way, the conditional statement in the codeLearn routine seems to always set corrAns to 1:

if (item <= 12){
    corrAns = '1';}
else{
    corrAns = '1';}
8

I created a new project for the same experiment. Now it works. Thanks a lot!