Hello! I’m trying to build a Go/No-Go experiment in PsychoPy, and I need help on one particular part of the experiment: The first routine is a trial routine (to make sure the participant understood the instructions, before he/she moves on to the main routine). What I’d like is to repeat the trial r…

[image] Marta: I only got one wrong answer, and it still didn’t move on to the next routine… I don’t know what to do… So that debugging output tells us that this line: if trials_3.thisN == trials_3.nTotal: never evaluates to True, as you never see output of either 'Finished.' or 'Score: '. …

What you probably need to do here is have a nested loop structure. i.e. once the inner loop is finished, you check what the percentage correct was. If it is < 75%, then do nothing, and the outer loop will run again, giving another practice session. If it is > 75%, then you terminate the outer loop s…

But how do I check the percentage of correct answers? I understand I must do something like “if the percentage of correct answers is below 75%, repeat loop” and “if the percentage of correct answers is above 75%, continue to next routine”, but I don’t know how to say that… I guess there must be som…

Try looking here: [image] Conditional looping Builder Hello, I am trying to figure out how to set a counter for the number of correct responses within a given set of trials. At the end of the loop, the participant needs to have passed at least 70% of the trials. How can …

I used the code component you reccomended in that topic and it worked. (Thank you!) However, when the answers are correct, it keeps on repeating the outer loop… What can I do to stop it, and move on to the other routine?

We’ll probably need to see you actual code snippets, and a precise description of what is needed. “when the answers are correct, it keeps on repeating the outer loop” doesn’t tell us too much since we don’t know your exact requirements. Let us know exactly what should happen and when.

I built a Go/No-Go experiment using an excel file: [image] The Go stimulus is the green circle; when it appears the person should press the space bar. Whenever the other images appear (green square and red circle), the person is not suppose to press any button. My experiment is divided in two pa…

I understood what you said on that topic about doing two routines (one for the instructions and another for the trial), and two loops. [image] However, I think the coding isn’t working, or there’s something that I did wrong, because it keeps repeating the outer loop. And I want to move on to the …

It looks like you have everything set up correctly and the code looks good. It should do what you want. And yet it doesn’t. Don’t worry: this is a state in which all computer programmers spend a good chunk of their time! My gut feeling, since the code looks OK, is that the problem might be with the…

It doesn’t allow me to run the experiment…! I think I did exactly what you told me… [image] [image] [image]

The brackets don’t match. Change the line: print('Score: ' + str(number_correct/(trials_3.nTotal + 1)) to be: print('Score: ' + str(number_correct/(trials_3.nTotal + 1)))

Repeat trial if answers are incorrect

Builder

Michael April 25, 2017, 9:42pm 4

Try looking here:

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Repeat trial if answers are incorrect

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