Response feedback + demographic responses

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Hi Grace,

For your second question, I think it's just attributed to a typo: in the trial template, it should be "responses" (plural, since there could be more than one response on a trial) instead of "response". That is:

Code:

"responses": ["DemographicGenderResponse"]

You may also need to remove the key mapping in the choice response - you have 4 options but only 2 mapped keys. It wouldn't work.

For your first question, are you imagining a choice response that accepts participant input via keyboard but doesn't show the hints for which keys to press? Is the purpose of your task to train participants to learn which keys to press?

Hi Ting, 

Thank you! Yep... it was just a typo. Whoops. 

In my experiment, participants will be instructed to press 'F' if a particular stimulus is presented, and 'J' if another particular stimulus is presented. The response-type is a "keypress" response. However, I don't want hints for which key to press before they respond. I want participants to rely on memory for which keypress corresponds to which stimulus. After participants respond, if participants press the 'F' key on a stimulus to which they should have pressed the 'J'  key for example, I'd like error feedback following their incorrect response to tell them their response was wrong and to remind them of the S-R key mappings. 

For example, participants might see a green square and be instructed to press 'F' for every green square that appears, or they might see a blue square and be instructed to press 'J' for every blue square that appears. If the response defined were a "choice" type response with key mapping 'F'/'J' and a target keypress defined, they'd have the choices 'F'/'J' presented on the screen below the stimuli. If they pressed the wrong choice, they'd get the error feedback. But if the response-type defined is a "keypress" response, there are no choices below the stimuli. But that's where it appears that there is also no way to give the error feedback similar to what's given in a choice-type response. 

In many words, the purpose would be to both train and remind participants of the keys to press in response to stimuli in both training and critical trials. 

Thank you! 

Grace