When you are finished, come back to the main session and collect one run of your task so that we can talk through the data file. Make the size (letter height) of the numbers change trial.Īdd a column to the conditions spreadsheet to note if this trial is congruent (numerically larger number is also physically larger) or incongruent (numerically larger number is physically smaller).Īdd an instructions routine and a thanks routine to the experiment. By default “participant” and “session” are gathered - and these are used to set the filename of that participant. age) ¶Įvery experiment starts with a dialog box to gather some info about the participant/experiment. Let’s start by presenting a different pair of numbers on each trial and allowing the participant to press the left and right arrow keys to indicate a number. Then make sure to use that variable to set the parameter of a component on every repeat of your loop. Once we have inserted a loop we can add a spreadsheet of trials to the “conditions” field. Each header is a variable, each row corresponds to the value of that variable on each trial. If something changes trial-by-trial, we make a spreadsheet (this can be made in Excel). To present several trials, add a loop around the routine to repeat. Changing things trial-by-trial (the “conditions” file) ¶ an Inter-Trial-Interval presenting a fixation cross). Creating a routine ¶Ī Routine is the basic building block of PsychoPy experiments. To start making an experiment we add routines to our flow and add components to our routines. What makes a PsychoPy experiment? ¶Ī builder experiment has three main sections. In this demo we will work through making a Numerical Stroop task in PsychoPy. Building better experiments ¶ Using Builder ¶Īll the base knowledge we assume at the start of this workshop can be learned from this 15 minute video
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