I’m using psychopy builder to build a lexical decision task (working on OS X El capitan 10.11.6; psychopy version 1.82.01, Standard Standalone version).
I’m trying to do two things without success at the moment:
–i’d like that psychopy stores reaction times in a milliseconds format and not in a second one (so if the time stored is “0,322961” I’d like that psychopy stores it in the format “322,961”);
–During an experimental session, a subject responds to three blocks (loops) of stimuli (48 stimuli for each block). Each stimulus consists in a pair of words presented sequentially (with a blank space between them) where only the second word must be responded (prime word and target word). The subject takes a short break (simple routine) after the first and the second block and he is able to push the space bar to finish the break starting the next block of stimuli. In spite stimuli in each block are presented in a sequential order, I’d like to counterbalance the presentation of the blocks randomizing the sequence (for example in a experimental session a subject could randomly see one of these sequences: “block1-break-block2-break-block3”, “block2-break-block1-break-block3”, “block3-break-block2-break-block1”, “block3-break-block1-break-block2”, “block2-break-block3-break-block1”, “block1-break-block3-break-block2”).
I have created 3 files for each loop-block (conditionsB1,conditionsB2, conditionsB3). In each file condition i have the parameters: itemnumber, primeword, targetword, corrAns.
I’ve tried to make a loop which includes all the three block-loops, and then selecting looptype=random, but it didn’t work.
Could you please help me with these two problems?
In these screenshots you can see where i’m stuck:
I’m allowed to post only two screenshots, the third consists in the third loop (equal to the others) and a final routine which says to the subject that the session is complete.
thank you for all your answers,