Questions about HDDMRegression with drift_criterion

[Ziliang Xiong]

Hi all,

I tried to search in the HDDM help doc but couldn't find much information, therefore I wondered if anyone here could help me understand this:

1. I understand that in HDDMStimCoding module it is possible to split drift rate v by using response-coded data and specifying another column in the data to denote accuracy (whether this is a correct or incorrect trial),
2. Same in HDDMStimCoding, one can explicitly set drift_criterion = True to separately estimate a constant bias added to the drift rate v. And this drift_criterion (dc) is also allowed to vary given desired task conditions, e.g., using depends_on = {'dc': 'condition'},
3. But if I understand correctly, HDDMStimCoding is more suitable for estimating between-subjects effects, so what about within-subjects effects? How can I use HDDMRegression to set up a similar model as I described in 2?

Any insights or helpful information would be greatly appreciated.Thank you all!

Ziliang