Calculating Perseverative errors WCST
I am extremely impressed by the OpenSesame WCST tutorial https://osdoc.cogsci.nl/3.2/tutorials/wcst/
but I have found it too complicted to work out how to calculate persevaritve erros.
I found a post that provided instructions for calculating number of categories achived https://forum.cogsci.nl/discussion/6650/wcst-scoring but persevartive erros are a frequently used and useful measure in schizophrenia research which suggests a failure to update the sort rule in working memory.
To caluclate persevaritve errors, I need to know what sort rule participants are currently using on each individual trial.
For the example below,
If particiapnts choose B then they are sorting by colour
If particiapnts choose C then they are sorting by number
If particiapnts choose D then they are sorting by shape
If particpants choose A then they don't understand the task
I have tried to get me head around this and I don't even now if it is possible to calculate persevartive errors using this implementaion of OpenSesame.
Any advice would be greatfully received.