Study Notes on Telehealth vs In-Person Training for TBI Communication Skills

Investigating the comparative efficacy of telehealth-based versus in-person social communication skills training (TBIconneCT) for individuals with moderate to severe traumatic brain injury (TBI).
Primary focus: Evaluating outcomes for both the TBI survivor and their nominated communication partner (CP) to determine if remote delivery is a viable, non-inferior alternative to traditional clinical settings.

The study was primarily based in Australia, utilizing resources from the University of Sydney and University of Technology Sydney.
Telehealth participants included individuals from rural and regional areas of Australia, as well as some located internationally, highlighting the reach of remote intervention.

Total Sample ( $N = 51$ ):
- Intervention Arm ( $n = 36$ ): Adults with moderate-to-severe TBI and their primary communication partners.
- Historical Control Group ( $n = 15$ ): Utilized to increase statistical power, consisting of participants from a previous study who received no intensive communication training.
Demographics: Participants were at least 6 months post-injury, aged 18-70, and demonstrated clinical communication deficits.
Communication Partners: Included family members, close friends, or paid carers who interacted regularly with the survivor.

Allocation Logic:
- Participants living within 2 hours of the university were randomized to either telehealth or in-person groups.
- Participants living further than 2 hours away were non-randomly assigned to the telehealth group (quasi-experimental design).
Control Alignment: The historical control group provided a baseline for "usual care" or no-treatment outcomes over a similar timeframe.

Program Structure: A reduced-intensity version of the evidence-based "TBI Express" program.
- Duration: 15 total hours delivered over 10 weekly sessions ( $1.5$ hours each).
- Mode of Delivery: Either via Zoom/Skype (Telehealth) or face-to-face in a clinic (In-person).
Core Components:
- Adult Learning Principles: Emphasis on self-reflection and collaborative goal setting.
- Video Feedback: Analyzing recorded 10-minute conversations between the TBI survivor and partner to identify negative patterns (e.g., testing memory, interrupting) and positive strategies (e.g., encouraging elaboration).
- Home Practice: Structured tasks to generalize skills into daily household interactions.

La Trobe Communication Questionnaire (LCQ):
- Total Score: Evaluates the frequency of 30 different communication behaviors on a scale from 1 (Never/Rarely) to 4 (Usually/Always). Total range: $[30, 120]$ .
- Change Score: Calculates the number of items ( $0$ to $30$ ) where the participant perceives a positive improvement post-treatment.
Functional Assessment of Verbal Reasoning and Executive Strategies (FAVRES): Measures the ability to process complex information and use executive functions during communication.
Sydney Psychosocial Reintegration Scale (SPRS): Measures the impact of the injury on work, leisure, and relationships.

Efficacy vs. Control: Trained dyads showed significantly greater improvements in the number of perceived positive changes compared to the historical control group (p < 0.05).
Effect Sizes:
- Medium effect sizes ( $d \approx 0.5$ ) were observed for communication partner reports regarding the survivor's skills.
- Non-significant but positive trends were noted in self-reports from TBI survivors, who often struggle with self-awareness post-injury.
Telehealth vs. In-Person:
- Unexpectedly, the telehealth group exhibited medium-to-large effect sizes favoring remote delivery on specific LCQ variables.
- Suggests that training in the home environment via telehealth may facilitate better skill generalization.

Cognitive Communication Disorder: Post-TBI deficits involving the interplay of cognitive functions (attention, memory, executive functioning) and linguistic skills.
Communication Partner Training (CPT): A shift from treating the survivor in isolation to treating the "dyad," recognizing that the partner's behavior significantly influences the survivor's success.
Telehealth Feasibility: Evidence that remote delivery reduces barriers such as travel time, fatigue, and geographical isolation without sacrificing clinical quality.

Sample Size: While sufficient for detecting general treatment effects, the study was underpowered for a formal non-inferiority trial.
Bias: Potential social desirability bias in self-reported and partner-reported questionnaires.
Generalization: Further research is needed to determine long-term maintenance of skills (e.g., 12 months post-intervention).

TBIconneCT is an effective, flexible intervention for improving social communication post-TBI.
Telehealth is not just a "second-best" option; it may offer unique advantages by allowing clinicians to observe and coach interactions in the participant's natural environment.