Each group session will be 2 hours long, and offered virtually (using Zoom for Healthcare). primaryPurpose: TREATMENT masking: DOUBLE whoMasked: PARTICIPANT whoMasked: OUTCOMES_ASSESSOR count: 64 type: ESTIMATED name: Trauma-Informed Goal Management Training (TI-GMT) name: Goal Management Training (GMT) measure: Change from baseline in symptom severity as assessed by the Clinician-Administered PTSD Scale for Diagnostic and Statistical Manual of Mental Disorders-5th Edition ('CAPS-5') at post-intervention and follow-up measure: Change from baseline in scores on the Sustained Attention Response Task ('SART') subtest of the Creyos Battery at post-intervention and follow-up measure: Demographic Information measure: Scores on the Life Events Checklist for Diagnostic and Statistical Manual of Mental Disorders-5th Edition ('LEC-5') at baseline measure: Scores on the Childhood Trauma Questionnaire ('CTQ') at baseline measure: Scores on the Advanced Clinical Solutions ('ACS') Test of Premorbid Functioning ('TOPF') at baseline measure: Change from baseline in scores on selected neuropsychological assessment measures of Executive functioning, Processing speed and Attention at post-intervention and follow-up measure: Change from baseline in scores on selected neuropsychological assessment measures of Declarative memory at post-intervention and follow-up measure: Change from baseline in scores on selected neuropsychological assessment measures of Intellectual functioning at post-intervention and follow-up measure: Change from baseline in scores on selected neuropsychological assessment measures of Visuospatial and Visuoconstructive Ability and Sensorimotor integration at post-intervention and follow-up measure: Change from baseline in scores on the Mini International Neuropsychiatric Interview 7.0.2 ('M.I.N.I.') at post-intervention and follow-up measure: Change from baseline in scores on selected neuropsychological assessment measures of Visual and Visuospatial Working Memory at post-intervention and follow-up measure: Change from baseline in score on the Depression and Anxiety Stress Scale ('DASS-21') at post-intervention and follow-up measure: Change from baseline in score on the PTSD Checklist for Diagnostic and Statistical Manual of Mental Disorders-5th Edition ('PCL-5') at post-intervention and follow-up measure: Change from baseline in score on the Multiscale Dissociation Inventory ('MDI') at post-intervention and follow-up measure: Change from baseline in score on the Difficulties in Emotion Regulation Scale ('DERS') at post-intervention and follow-up measure: Change from baseline in score on the twenty-item Toronto Alexithymia Scale ('TAS-20') at post-intervention and follow-up measure: Change from baseline in score on the Moral Injury Assessment for Public Safety Personnel ('MIA-PSP') at post-intervention and follow-up measure: Change from baseline in scores on the Behavior Rating Inventory of Executive Function-Adult Version (BRIEF-A) at post-intervention and follow-up measure: Change from baseline in scores on the Cognitive Failures Questionnaire 2.0 ('CFQ 2.0') at post-intervention and follow-up measure: Change from baseline in scores on the Return to work Obstacles and Coping Efficacy - Common Mental Disorders ('ROSES-CMD') at post-intervention and follow-up measure: Change from baseline in scores on the World Health Organization's Disability Assessment Schedule ('WHODAS 2.0') at post-intervention and follow-up measure: Change from baseline in scores on the Lam Employment Absence and Productivity Scale ('LEAPS') at post-intervention and follow-up measure: Change from baseline in scores on the Survey of Perceived Organizational Support ('SPOS') at post-intervention and follow-up sex: ALL minimumAge: 18 Years maximumAge: 65 Years stdAges: ADULT stdAges: OLDER_ADULT hasResults: False