Hi,
I was wondering whether there is a way for participants to calibrate the size of all the images I use in my experiment (so that for each participant the graphics would all be the same size on their screens).
On previous platform I, for example, displayed a graphic that participants can then adjust to match a standard size (e.g. that of a debit card) and this adjustment is calibrated to all other images that are displayed throughout the experiment.
Any tips would be welcome. Thanks!
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You could have a bunch of photos in a multiple choice question at the start and ask people which of the photo size they would prefer. You could use this to assign embedded variables for width and height and then pipe these into later photos to ensure they are all of the size people selected in the first question.
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