it's usually used for people with a diagnosis of borderline personality disorder, but they have modified it to use also for those with an eating disorder and other things (though in my area don't put the two groups together).

i did a DBT skills group years ago since i had a diagnosis of borderline then, but the dissociation was so bad then that i couldn't complete things they wanted or even be fully engaged during the groups. it wasn't by the recommendation of my current therapist who knew the dissociation was too bad for much of anything to be useful at that point, but i did it anyway since my case worker wanted me to...they were on two totally different pages.

it also was hard because of how it was run. the leaders didn't really stop certain conversations (people talked about getting revenge and being angry)..and it kind of triggered me and caused me to fear them.

i would suggest if you can to get as much info about it as you can including the format of the group, how it's run, etc. the leaders of the group also didn't really engage with anyone during breaks, so it felt like they were standoffish or didn't want to really be there/associate with us and it was just a job or something.

over the years, i have naturally come to implement some things they teach, and the dissociation is less..but it's not 'because' of those skills per se, just is something that changed in my mind.

i personally feel like a mix of DBT (for mindfulness) and CBT (for helping change thought patterns, recognizing triggering things, etc. and reframing thoughts to things more positive/helpful) have helped me. i also liked a CBT group i did because it talked about boundaries and stuff, though i guess DBT might have some of that too, i forget.

i always liked to learn about other topics like boundary setting, effective communication, etc. that i could implement with those close to me.

i don't know how DBT is used specifically for those with DID unless it's adapted for that. it wouldn't be the first thing i would think of...though if you are going to, i'd suggest doing it one on one with a therapist and not in a group if possible.