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Group: Forum Members
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Hi there,
I've got something I cannot work out for a while. Here's the thing:
My experiment consists of two general phases. First, a pretest is supposed to select a subset of stimuli on a basis of participants' responses. Second, a test has to use this subset.
Now, a pretest has 50 pictures. Each of them is evaluated on a scale from -5 to +5. Second option is to use a slider.
Let's stick to the scale for now. Having defined valid responses on a keyboard I have to track the participants evaluations. How does Inquisit register response values attached to particular keys? And how those responses are stored together with a stimuli that elicited them?
On the end of the pretest I need to select a subset of pretested stimuli. Now, here the true issue. I want to select (out of 50) 3 stimuli that got lowest ratings, another 3 with greatest ratings, and yet another 3 with ratings as close to the middle of a scale as possible. Those would then be used throughout the rest of experiment.
I'll appreciate any hints or ready-made solutions,
Robert
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