A few days ago I posted some calibration curves for remembering, knowing, and guessing. (It turns out they were constructed from pilot data instead of the full data set accidentally, but the same pattern bears out). In the third experiment of my dissertation -- I have 32 of 64 subjects' worth of data collected so far -- we get both recognition (old/new) accuracy and source accuracy and thus are able to plot two calibration plots, one for recognition and one for source. Take a look.

Calibration curves

They look pretty similar, which is both good and bad news. First note that, at least by eyeball, there's a bigger difference at high confidence (that's the x-axis, which I'm noticing I've left out) for source memory than old/new accuracy for remember versus know. Some prior literature, however, predicts that that know curve for source accuracy should not really be exceeding any point falling on the remember curve. Clearly, though, 80-100 confidence knows are more accurate, in terms of source, than 0-79 confidence remember ratings.

So this is going to be something I have to think about over the next few days. I think it might come down to the instructions. In my study, subjects make a recognition + source decision, then confidence, than remember/know/guess. This order -- as well as the specific prompt for the confidence rating -- might end up being very important in this line of research. Hmm...

05/08/14; 11:17:50 AM

Last built: Fri, Jul 17, 2015 at 9:33 AM

By Andy DeSoto, Thursday, May 8, 2014 at 11:17 AM.