u/kryona334

Hello everyone,

I've worked quite a bit with neuropsychological testing and always seem to find a difference in how many SD classify impairment (between colleagues and papers). I know it's not that black and white and combining testing with observations and the history is necessary to conclude anything. But I'm just curious which psychometric criteria everyone uses.

So, how many SD do you use as a sign of impairment? Do you have any literature to support your cut-off?