Identifies as woman

Age 18 and over

Probable PTSD as judged by the PCL-5 (score of 31 or higher, indicated as having optimal signal detection)

No cognitive impairment according to a score of \< 10 on the Short-Blessed Test

Experienced homelessness in the past 6 months or prior to incarceration ("spent night in public or private shelter or on the street")

Able to speak and understand English.

Mindful Self-Compassion to Address PTSD and Substance Use in Unhoused Women