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 achieve this end?

Keeping track of the the number of correct responses is quite simple (just a couple of lines of code in a code component). But to give a full answer, we need to know what action you want to take on the basis of that score. i.e. at the end of the loop, what should happen if the score is >= 70%, and …

Yeah, that much I gathered just by tinkering with the script. To better explain what I’m doing; the participant is going to complete 12 practice rounds. Each round they will be presented with a color and they must press the first letter of that color using the keyboard. Following the conclusion of t…

OK. You need something like this: Two routines: one for the instructions, followed by one for the practice task. Two loops: an inner one that surrounds just the second routine, and an outer one that encompasses both routines (so that the inner loop is nested within it). The inner loop will be con…

Thank you! I appreciate the feedback. I’m gonna give that a shot. I’ll let you know how it goes. Thanks again. I’m new to coding; so, I’ll take any advice I can get.

So, I managed to get the looping to work properly, however, there’s a routine that I don’t want to play at the conclusion of the practice rounds. Basically, in between each round, just after a the participant is given feedback, there’s a screen that reads “Let’s try another.”

Then in that routine, insert a code component and in its Begin routine tab, insert a check which means that the routine will only run if some condition is met. At a guess, something like: # don't run this routine if the outer loop is not set # to have another iteration: if outer_loop_name.finished…

That does work, however, it stops presenting that routine after 8 correct responses. To resolve that issue, I’ve been trying to do something like: if practiceTrials.thisN == 12: continueRoutine = False

Yes, that is the better, more direct way to do it (using the inner rather than outer loop: I think I misunderstood the situation). But remember that Python is zero-based, so you should be testing if practiceTrials.thisN == 11: rather than 12, if you want to catch the final trial. Hope that helps

Yeah, that worked. But apparently, the PI on our study wants it to record only the first response (To ensure that the participant isn’t mashing buttons, while also familiarizing them with the study before they do the baseline assessment). Any suggestions? And by the way, I appreciate the help; all o…

[image] Svensona1: record only the first response That is an option that can be selected in the Keyboard component.

Conditional looping

Builder

Oli November 7, 2016, 10:43am 16

This was addressed in a previous topic:

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Conditional looping

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