selection is used to select a subset of condition indices to be used It can be a. I created a new variable including those generated numbers and added it in the ‘selected rows’ field in the loop which was randomized and intermixed there as well by selecting ‘loopType’ = random. for eachTrial in trials: automatically stops when done do stuff.
#SUBSET ITEMS IN PSYCHOPY CODE#
The code element was placed in the routine running just before each block. I entered this code in the the beginning routine section. 7 numbers from the subsets of numbers from 28 to 55 (also changed).numbers in a row from 0 to 27 (in my final experiment, I changed the rows, so this is instead of 30).
My solution involved a code component with JavaScript code for generating random numbers from two subsets: I found similar ones, but didn’t see how the rows could be intermixed. I am sorry if a topic answering this question was already created. Otherwise, each participant will only get 7 same distractions throughout experiment.ĭistracting stimuli must be randomly intermixed with real stimuli, resulting in totally 37 shows from the condition file in one block. I can’t only enter 37 rows in my condition file (30 rows for ‘real’ stimuli and 7 rows for distracting stimuli) and select a random order, since it is important to select the distractions randomly from a pool of 30 pictures in each block. These stimuli will work as distractions for participants. For example, I have first 30 rows with stimuli that I am actually interested in, and 30 rows in the second half with stimuli from which I need to choose randomly only 7 items in each block. In my conditions’ file, I have two subsets of rows that must be intermixed in different proportions. I use Psychopy version Standalone PsychoPy 2020.1.3 for 64bit Windows (using Python 3.6). I am building my experiment in Builder view, but will run it online on Pavlovia.
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