Insert break into a random sequence of stimuli from an external list

DOC23

Hello everybody.

I have a problem with my experiment as I have to insert an automatic break after half of the stimuli.

So there is the practice loop, and then the main loop in which I have a list of stimuli taken from an external source, but just in the middle of them (they are 96) I need an automatic break with a blank screen within just the word "break". I would like to let the participant press "space" from the keyboard to start again.

Can you help me? 

I didn't know what kind of screenshot I would have taken from my experiment, so I put a general one waiting for advice.

Thank you!

eduard

Hi, add a sketchpad with pause in it in the sequence and set its run if value to [trial_no]=48

* of course trial_no has to be the variable that keeps track of the trial number.

Eduard

DOC23

@eduard

No sorry I did not understand, what do you mean for "has to be the variable that keeps track of the trial number"?

Because I have a list of stimuli inserted with this formula:  File[=var.subject_nr % 2+1]_stimuli.csv

eduard

If you check the log file you will see variables that start with "count_" and end with the item name that you gave them in the overview area. For example, "count_fIxation_sequence". These variables keep track of how often an item was called, and are therefore sort of what a trial number would be. In other words, if you show the sketchpads 96 times, the count will run from 0 to 95, across all repetitions.

Use one of these variables in the run if field the same way I mentioned above and you should be able to get your pause.

Good luck.

DOC23

It doesn't work :(

Apparently, in my experiment there is "count_target" that should track the number of items. I tried to insert the run if in the break as

[count_target]=48

but it didn't work.

I tried with several count_something, but nothing.

Then, step back, at which level do i have to insert the pause?

Now i have

main_loop{main_list_sequence[trial_loop(trial_sequence)]}

and the break is after the main loop, not into it, maybe this is the error?

eduard

Can you upload the experiment?

Eduard