Effectiveness of Communication Partner Training for Severe Traumatic Brain Injury

Objective and Design

Objective: To rigorously determine the effectiveness of a communication training program specifically designed for partners of individuals living with severe traumatic brain injury (TBI).
Design: A three-arm non-randomized controlled trial, employing a $6$ -month follow-up period to assess both immediate and sustained effects of the intervention.
- The trial methodically compared three distinct groups to isolate treatment effects:
  1. JOINT condition: This arm involved comprehensive communication partner training where both the communication partner and the person with TBI participated in the intervention sessions simultaneously. The hypothesis was that mutual learning and application of strategies would yield superior outcomes.
  2. TBI SOLO condition: This arm provided individual treatment focused solely on the person with TBI, without direct involvement of their communication partner during therapy sessions. This condition served to assess the benefits of direct intervention for the TBI individual in isolation.
  3. Waitlist control group (CONTROL): Participants in this group received no intervention during the study period but were offered the same treatment program after the study's completion, ensuring ethical treatment access while providing a baseline for comparison against the active treatment groups.

Participants

Forty-four ( $n=44$ ) outpatients diagnosed with severe chronic traumatic brain injuries were carefully recruited from three prominent brain injury rehabilitation centers across Sydney, Australia, ensuring a representative sample from a clinical population.
Inclusion Criteria:
- Documentation of a moderate-severe TBI occurring at least $9$ months prior to study enrollment, clinically defined by: a Glasgow Coma Scale (GCS) score of $9-12$ (moderate) or $8$ or less (severe), and/or a Post Traumatic Amnesia (PTA) period lasting $1-24$ hours (moderate) or more than $24$ hours (severe). This ensured a consistent and chronic TBI population.
- Exhibition of significant and persistent social skills deficits, which included observable social awkwardness, a lack of awareness of social cues, and inappropriate communication responses, sufficiently severe to interfere with everyday communication. These deficits were judiciously judged by a referrer, the individuals themselves, or their family members.
- Evidence of at least average premorbid intelligence, which was subsequently confirmed through a thorough neuropsychological assessment to ensure participants could engage meaningfully with the training.
- The presence of a regular communication partner with whom the TBI individual interacted daily, as the study heavily relied on the dynamics of sustained real-world communication.
Exclusion Criteria: To minimize confounding variables and ensure the safety and suitability of participants for the communication training, individuals were excluded if they presented with:
- Active drug and alcohol addiction or active psychosis, which could impede participation and treatment efficacy.
- Aphasia, as the communication training focused on pragmatic social skills rather than language production or comprehension deficits.
- A non-English speaking background, to ensure consistent understanding and application of the English-based intervention.
- Severe amnesia, which would significantly impair learning and retention of new communication strategies.
- A history of previous brain injury, to ensure the observed deficits were attributable primarily to the index TBI.
- A pre-existing psychiatric history that might complicate treatment or data interpretation.
- Severe dysarthria, which could mask improvements in social communication due to pronounced speech intelligibility issues.
Crucially, all participants were not engaged in other forms of rehabilitation concurrently with the study, thereby isolating the effects of the TBI Express program.
Caregivers (communication partners) were also screened to ensure they regularly interacted with the person with TBI, had no history of brain injury themselves, and no known psychiatric history, ensuring their capacity to participate effectively.

Intervention: Communication Skills Training Program ("TBI Express")

Duration: The intervention comprised an intensive $10$ -week conversational skills treatment program.
Structure: The program was structured to include weekly group and individual sessions for both active treatment groups (JOINT and TBI SOLO).
- Group sessions: Each lasted $2.5$ hours (including a $15$ -minute break), allowing for interactive learning and peer support, and were collaboratively conducted by two experienced therapists.
- Individual sessions: Ranging from $45-60$ minutes, these personalized sessions were conducted by a single therapist, allowing for tailored feedback and strategy refinement.
- Individual sessions were typically scheduled on the same day as group sessions for participant convenience and logistical efficiency.
Program Format:
- The program utilized a uniform manualized approach, ensuring fidelity and consistency in intervention delivery across all participants, based on the established framework of "TBI Express."
- Group sessions robustly included:
  - A review of home-based tasks, which involved analyzing tape-recorded interaction samples from the previous week, fostering self-reflection and peer learning.
  - The introduction of new communication information and specific strategies, building incrementally on prior learning.
  - Extensive role-playing and guided practice of conversational strategies, providing a safe environment for skill generalization.
  - Constructive feedback on the application and effectiveness of techniques.
- Participants were equipped with tape recorders for the entire duration of the study and received training on how to record conversations for their weekly home tasks, thus facilitating real-world practice and self-monitoring.
- Individual sessions were crucial for personalized goal setting, detailed feedback on home tasks, problem-solving specific communication challenges, and further practice or troubleshooting of new strategies adapted to individual needs.
- This combination of individual and group sessions offered a synergistic blend of therapeutic benefits (e.g., vicarious learning, diverse peer feedback, broader social context) and economic efficiency, optimizing resource allocation.
- Participants who presented with serious psychological issues during the program were promptly referred to clinical psychology services for specialized support, while importantly, continuing their communication training program.
Program Content: The curriculum was meticulously developed based on a sophisticated blend of contemporary theories and previously validated resources, ensuring a strong evidence base:
- Behavioral techniques, specially adapted for the unique needs and challenges presented by TBI (Reference $20$ ), formed the practical foundation.
- Sociolinguistic theories of communication (Reference $21$ ) guided the understanding of social context, turn-taking, and conventional norms in conversation.
- Principles derived from Vygotskian learning theory (Reference $22$ ), emphasizing the Zone of Proximal Development and the role of scaffolding, informed the instructional design.
- The program integrated strategies from previously validated communication training resources (References $17, 23$ ), ensuring effective and tested methods.
- Materials were carefully modified to accommodate both formal, structured role-plays and informal social conversations, deliberately teaching communication according to the specific discourse type (e.g., distinct strategies for shopping versus casual chat) (Reference $21$ ). This real-world focus maximized relevance and generalizability of learned skills, critical for long-term functional improvement (References $22, 24$ ).
JOINT Condition Specifics:
- This condition uniquely focused on enhancing communication skills for both the partner and the person with TBI, recognizing communication as a dyadic process.
- Target behaviors for partners were meticulously identified based on extensive previous work (References $25-27$ ) and included addressing:
  - Over-compensating behaviors, such as speaking excessively slowly or infantilizing the TBI individual.
  - Not providing the injured individual with sufficient opportunities to initiate or maintain communication turns.
  - Failing to provide natural and appropriate consequences for communication successes (e.g., showing genuine interest or following up on topics).
  - Not responding effectively to communication failures (e.g., giving clear non-verbal feedback for extended or tangential talking).
  - Asking questions to which the answer was already known, which can feel condescending or like a "test" rather than a genuine query.
  - Repeatedly checking information accuracy, which can undermine the TBI person's confidence.
  - Failing to follow up on information provided by the person with TBI, causing a breakdown in conversational flow.
- The JOINT condition also focused on developing more positive and effective interactions using elaborative and collaborative strategies suggested by Ylvisaker et al. (Reference $25$ ), specifically scaffolding procedures that support the TBI individual's communication without taking over.
- Parallel goals were established for both TBI participants and communication partners to promote synchronous learning and application (e.g., TBI participant goal: 'to initiate new topics'; partner goal: 'to allow TBI participant to take more turns').
TBI SOLO Condition Specifics:
- This condition focused solely on the individual with TBI, with the design paralleling key JOINT concepts but without the direct involvement of a communication partner.
- Training for TBI participants specifically aimed at extending conversational topics by systematically discussing the 'who, what, when, where, and why' aspects of events, thereby improving the richness and detail of their contributions.
- Initial sessions for both JOINT and TBI SOLO groups introduced fundamental communication concepts and the specific impact of TBI on communication skills.
- Middle sessions progressively introduced practical strategies for successful communication, building foundational skills.
- Final sessions were dedicated to refining strategy use in varied contexts and developing individualized plans for ongoing practice and generalization of skills beyond the program.

Main Outcome Measures

Primary Outcomes: These focused on blind ratings of the person with TBI's level of participation during conversation, serving as the core measure of treatment effectiveness.
- Measured using the meticulously developed Adapted Measure of Participation in Communication (MPC) Kagan scales (References $15, 19$ ).
- These scales objectively evaluated the TBI person's ability to socially connect, respond appropriately to conversational cues, and initiate content effectively in casual conversation settings.
- The Adapted MPC consisted of two distinct subscales:
  1. Adapted MPC Interaction scale: Assessed the TBI person's engagement and responsiveness within the conversational exchange.
  2. Adapted MPC Transaction scale: Measured the TBI person's ability to convey new and relevant information.
- While the original MPC scales were developed for aphasia, Togher et al. (Reference $19$ ) carefully adapted them for TBI, significantly increasing their focus on pragmatic aspects of communication and re-wording anchor points to enhance inter-rater reliability.
- Each participant engaged in two distinct conversations with their communication partner at each time point (pre-test, post-test, $6$ -month follow-up):
  - Casual conversation: Participants were simply instructed to "have a chat for a few minutes," capturing spontaneous communication.
  - Purposeful conversation: Participants were instructed to collaborate on making a list of important communication situations for the upcoming month and to strategize plans to deal with them; this was primarily used for secondary outcomes.
- Two independent, highly trained raters, who were blind to the participants' group allocation, scored $5$ -minute video recordings of these interactions. Ratings were conducted using two $9$ -point Likert scales, ranging from $0$ to $4$ with $0.5$ -point intervals, where:
  - $0$ signified no participation.
  - $2$ indicated adequate participation.
  - $4$ represented full participation.
- Psychometric Data (Reference $18$ ): The scales demonstrated robust psychometric properties:
  - High Inter-rater reliability (Intraclass Correlation Coefficients, ICCs) ranged from $0.84-0.89$ , indicating strong agreement between different raters.
  - Strong Intra-rater reliability (ICCs) ranged from $0.81-0.92$ , demonstrating consistency within individual raters over time.
  - Over $90$ % of ratings were within $0.5$ points on the $9$ -point scale (Reference $19$ ), confirming the precision of the measurement.
Secondary Outcomes: These focused on global ratings of the communication partner's contributions to the interaction.
- Measured using the Adapted Measure of Support in Conversation (MSC) scales (References $15, 19$ ).
- The same trained, blind raters evaluated the degree of support provided by the partner, also using $9$ -point scales ( $0$ to $4$ ).
- The Adapted MSC consisted of two specific scales:
  1. Evaluates how partners acknowledge the competence of the person with TBI, promoting their self-esteem and participation.
  2. Evaluates how partners reveal the competence of the person with TBI, by creating opportunities for them to demonstrate their abilities.
- These scales also exhibited strong psychometric properties with high inter-rater (ICC= $0.85-0.97$ ) and intra-rater (ICC= $0.80-0.90$ ) agreement, and over $90$ % of ratings were within $0.5$ points (Reference $19$ ), attesting to their reliability and validity.

Data Analysis

The study employed a non-randomized controlled trial design, critically comparing measures taken at pre-test, post-test, and $6$ -month follow-up intervals.
Treatment effects were rigorously operationalized as group $\times$ time interactions derived from repeated measures ANOVAs (Analysis of Variance).
The analysis meticulously examined performance on both primary and secondary outcome variables across the three groups, focusing on two key temporal comparisons:
1. Between pre-test and post-test assessments, to gauge immediate treatment efficacy.
2. Between post-test and $6$ -month follow-up assessments, to evaluate the maintenance of treatment gains.
Planned contrasts were strategically used to address two central research questions:
1. Is active treatment (either TBI SOLO or JOINT) demonstrably more efficacious than receiving no treatment (CONTROL group)?
2. Is combined training involving both the TBI person and their partner (JOINT) more effective than individual treatment focusing solely on the TBI person (TBI SOLO)?

Results

Allocation and Retention:
- A total of $106$ participants were initially referred to the study; diligent screening led to the exclusion of $62$ individuals who did not meet the strict inclusion criteria.
- Consequently, $44$ eligible participants completed the pre-training assessment and were subsequently allocated to one of the three study arms:
  - JOINT group: $n=14$ participants.
  - TBI SOLO group: $n=15$ participants.
  - CONTROL group: $n=15$ participants.
- The study demonstrated excellent retention rates: $93$ % ( $41/44$ ) of participants completed the post-training assessment.
- Long-term retention was also strong: $87.50$ % ( $38/44$ ) of participants completed the $6$ -month follow-up assessment, indicating good participant commitment.
Treatment Attendance:
- The inclusion criterion for data analysis was a minimum of $80$ % attendance for both group sessions (at least $8/10$ sessions) and individual sessions (at least $8/10$ sessions).
- Remarkably, all remaining participants in both the JOINT and TBI SOLO treatment groups met these stringent attendance criteria, following only $2$ participant withdrawals, attesting to high engagement.
- There was no statistically significant difference observed between the JOINT and TBI SOLO groups regarding the number of group sessions attended ( $U=88.00, z=-0.81, p=0.41$ ) or individual sessions attended ( $U=100.00, z=-0.24, p=0.66$ ), ensuring comparability of exposure.
- Participants in the active treatment groups received a median of $32$ hours of direct therapeutic intervention.
Home Practice Completion:
- A significant finding was that the JOINT group demonstrated substantially greater compliance with completing assigned homework tasks compared to the TBI SOLO group ( $U=55.00, z=-2.32, p=0.02$ ), highlighting the positive impact of partner involvement on adherence.
Prognostic Indicators (Baseline Comparability):
- Comprehensive baseline assessments revealed no significant differences across the groups for crucial demographic variables such as age, educational attainment, or time elapsed since onset of TBI, indicating initial comparability in these factors.
- Similarly, no significant differences were found on measures of working memory, processing speed, and cognitive linguistic functioning at baseline, further supporting the comparability of cognitive profiles.
- However, the JOINT group did score poorer on one specific new learning measure (WMS Logical Memory II, $p=0.02$ ) and one executive functioning measure (COWAT, $p=0.01$ ), but it is important to note they were similar to other groups on other related cognitive measures, suggesting these differences might not significantly confound overall conclusions given the broad comparability.
Analysis of Treatment Effects (Pre- to Post-test):
- Primary Outcome Measures (MPC Interaction and Transaction scales):
  - There was a significant overall treatment effect for conversational skill, as measured by the MPC scales, in both casual (CC) and purposeful (PC) conversations ( $p=0.03$ for MPC Interaction CC and PC, $p=0.007$ for MPC Transaction CC, $p=0.008$ for MPC Transaction PC), demonstrating the intervention's positive impact.
  - JOINT vs. CONTROL: Post hoc comparisons clearly showed that the JOINT group achieved significantly greater gains for both conversation types for Interaction scores (CC: $p=0.01$ , PC: $p=0.03$ ) and Transaction scores (CC: $p=0.003$ , PC: $p=0.008$ ) compared to the control group.
  - JOINT vs. TBI SOLO: The JOINT group also demonstrated increased gains for Transaction scores in both casual and purposeful conditions (CC: $p=0.02$ , PC: $p=0.01$ ) and for the Interaction score in the purposeful conversation condition ( $p=0.03$ ) when compared to the TBI SOLO group, underscoring the added benefit of partner involvement.
  - TBI SOLO vs. CONTROL: Crucially, no significant differences were observed on the MPC scales between the TBI SOLO group and the CONTROL group, suggesting that individual-focused training alone was not significantly more effective than no training for these primary outcomes.
- Secondary Outcome Measures (MSC Acknowledge and Reveal scales):
  - Significant treatment effects were found for all secondary outcome variables in casual conversations ( $p=0.001$ for MSC Acknowledge CC, $p=0.004$ for MSC Reveal CC), indicating improved partner support.
  - All post hoc comparisons between the JOINT and CONTROL groups were statistically significant for casual conversations, confirming the superior performance of the JOINT group's partners.
  - By contrast, all comparisons between the TBI SOLO and CONTROL groups were not significant for casual conversations, reinforcing the lack of partner support improvement in the TBI SOLO condition.
  - For purposeful conversations, significant treatment effects were observed for most secondary outcomes, although the MSC Acknowledge Competence and MSC Reveal Competence measures approached but did not reach statistical significance.
  - All post hoc comparisons on significant secondary outcome variables for purposeful conversations consistently favored the JOINT group, indicating that partners in this group provided more effective support.
Analysis of Treatment Effects (Post-test to $6$ -month Follow-up):
- Importantly, no significant interactions were found for the majority of outcome variables during this follow-up period.
- This robust finding indicates that the gains in communication skills achieved by the training groups were generally maintained over $6$ months post-treatment and did not revert to pre-intervention levels, highlighting the durability of the intervention's effects.

Conclusion

The overarching conclusion is that training communication partners alongside people with chronic severe TBI (JOINT condition) was significantly more efficacious in improving communication skills than training the person with TBI alone (TBI SOLO condition).
The Adapted Kagan scales (MPC and MSC) were validated as robust and highly sensitive outcome measures, effectively capturing meaningful changes in a conversational skills training program for individuals with TBI.

Discussion

Efficacy of Communication Partner Training (JOINT Group):
- The JOINT training program demonstrated a significant positive effect on both the interactional and transactional aspects of communication, as rigorously and objectively measured by the Adapted MPC ratings.
- This profound efficacy extended to secondary outcomes, showing significant improvements in the communication partner's ability to effectively acknowledge and reveal the competence of the person with TBI, which in turn enhanced overall interaction quality.
- Reasons for Success (JOINT Group):
  - A critical factor was that communication partners were cognitively intact, enabling them to comprehend, remember, and consistently apply the training content and strategies between sessions.
  - Adherence to the core principles articulated by Ylvisaker et al. (Reference $13$ ) was paramount, promoting communication as inherently a collaborative and elaborative process, rather than a one-sided exchange.
  - The intentional training of partners to reveal competence in the TBI speaker, by creating opportunities for successful communication, proved to be a critical component of the intervention.
  - The intervention was carefully designed to sensitively target and effectively modify detrimental communication styles often adopted by partners (e.g., reducing excessive "test" questions, discouraging speaking on behalf of the TBI person).
  - Partner involvement substantially increased home practice completion compared to the TBI SOLO group. This aligns strongly with principles of experience-dependent neuroplasticity (Reference $28$ ), where consistent, real-world practice is key for brain reorganization and skill acquisition.
  - Participants in JOINT groups also qualitatively identified specific program elements as critical to their success, including the comprehensive course content, individualized goal setting, the synergistic combination of group and individual sessions, the emphasis on self-monitoring, and, most importantly, the active involvement of their communication partner (Reference $29$ ).
  - From the perspective of the ICF (International Classification of Functioning, Disability and Health) framework, communication partner training can be conceptualized as a powerful environmental facilitator, directly enhancing communication performance in essential daily activities like conversations (Reference $30$ ).
  - Challenges for Partners: While highly successful in casual conversations, partners in the JOINT group were observed to be less effective in consistently acknowledging and revealing competence in purposeful conversations. This might be attributable to the increased cognitive demands and organizational complexity inherent in purposeful tasks for individuals with TBI, requiring greater compensatory efforts from partners.
Lack of Improvement for TBI SOLO Group:
- The participants in the TBI SOLO group had severe, chronic TBI, which inherently presented significant challenges related to new learning, memory consolidation, and executive functioning deficits. These long-standing cognitive impairments may have severely limited the benefits they could derive from direct, individual-focused training without partner support.
- A key contributing factor to their limited progress was markedly lower compliance with homework tasks compared to the JOINT group, directly translating to less practice and reinforcement of learned strategies.
- This suggests that for individuals with severe TBI participating without a communication partner, additional supportive strategies might be necessary to enhance compliance and engagement, such as regular phone reminders, structured Skype booster sessions, or the provision of volunteer facilitators, to bridge the gap in external support.
Maintenance of Gains:
- A highly encouraging finding was that the improved communication skills achieved were effectively maintained $6$ months post-program completion. The absence of significant interactions on primary and secondary outcome measures during the follow-up period confirmed this durability.
- This robust maintenance of treatment effects is consistent with findings from similar research, such as Dahlberg et al. (Reference $11$ ), who also reported sustained improvements up to $9$ months following intervention.
Robustness of Adapted Kagan Scales:
- This study holds significance as one of the pioneering investigations to explicitly use the Adapted Kagan scales (MPC and MSC) as primary outcome measures within the context of TBI conversational skills training. Their utility and sensitivity were critically assessed.
- These scales were proven to be highly effective, specifically because they could objectively focus on contributions from both participants in a conversation, providing a comprehensive assessment. They demonstrated strong reliability and sensitivity to detecting meaningful changes over time.
- Further reinforcing their utility, Swedish researchers have independently adapted these scales, confirming their value as a robust quantitative measure for both interactional and transactional components of conversation. They also noted the scales' time efficiency compared to more laborious Conversational Analysis techniques (Reference $33$ ).

Study Limitations

Small sample size: A recognized limitation was the relatively small sample size, primarily due to the very specific and stringent inclusion criteria. For example, the requirement of an available communication partner willing to commit to intensive training significantly narrowed the potential participant pool.
Non-randomized allocation: The trial's design as a non-randomized allocation study inherently limited its internal validity and the generalizability of its findings. This design choice made true randomization impossible, resulting in groups that were not entirely equivalent across all baseline measures (e.g., the JOINT group scored relatively poorer on two specific cognitive measures).
- An additional factor impacting generalizability was that the JOINT group tended to comprise highly committed family members or carers. Furthermore, a significantly higher proportion of communication partners in the JOINT group lived with the TBI person, which could have potentially influenced engagement, compliance, and ultimately, the observed outcomes, suggesting a pre-existing level of support in this group that might not be representative of all TBI dyads.

Future Research

Future research endeavors should prioritize implementing a fully randomized controlled design to substantially strengthen the findings and enhance the external validity and generalizability of the intervention's efficacy.
Investigation into practical modifications to the training program is crucial to make it more accessible and scalable for communication partners. This includes exploring alternative delivery methods such as telehealth platforms and offering more flexible scheduling options for those who do not live with the TBI person or cannot attend during conventional working hours.
There is a clear need to explore and develop additional strategies to effectively assist homework compliance for individuals with TBI who participate in training without a partner, thereby maximizing their potential for skill acquisition and generalization.

Training Program Overview (Appendix I)

Session $1$ : Introduction
- Establish the purpose of the program, outline group guidelines, articulate home practice expectations, and facilitate participant introductions to foster a supportive learning environment.
Session $2$ : Brain Injury and Communication
- Provide a comprehensive educational component focused on understanding the multifaceted impact of TBI on communication, effectively utilizing video case studies to illustrate real-world scenarios.
Session $3$ : Effective Communication $1$
- Explore the fundamental forms, diverse purposes, varying contexts, inherent structures, and dynamic roles within communication, building a foundational understanding.
Session $4$ : Effective Communication $2$
- Extend the concepts from Session $3$ , delving deeper into general communication facilitation strategies, identifying common barriers, and recognizing facilitators present in everyday life interactions.
Session $5$ : Collaboration (TBI SOLO: 'Starting and Participating in Conversations')
- Introduce and practice specific techniques for engaging in collaborative, equitable, and organized conversations; within the JOINT group, partners specifically learn how to provide essential structure and support without dominating the interaction.
Session $6$ : Elaboration (TBI SOLO: 'Extending Conversations')
- Focus on techniques (keeping conversations going) for effectively organizing and linking topics, utilizing a range of strategic questions and comments; JOINT group partners learn advanced scaffolding techniques to extend conversations without taking over.
Session $7$ : Asking Questions
- Explore the nuanced art of asking appropriate and genuinely helpful questions, differentiating them from unhelpful ones; JOINT group partners specifically learn to avoid testing questions and to focus on positive, genuine questioning.
Sessions $8-10$ : Improving Skill and Confidence
- These concluding sessions are dedicated to revising all previously learned techniques and engaging in extensive practice with actual conversations to build fluency and confidence; Session $10$ culminates with a celebratory group lunch to acknowledge achievements and foster continued connection.

Acknowledgements

Profound gratitude is extended to the dedicated study participants, Dr. Rob Heard for invaluable statistical advice, Gaye Murrills, and the committed staff of Liverpool Hospital, Royal Rehabilitation Centre Sydney, and Westmead Hospital Brain Injury Rehabilitation Units for their crucial assistance in participant recruitment.
The first author's involvement in this significant research was generously supported by an NHMRC Senior Research Fellowship.
The study itself received vital funding through NHMRC Project Grant $402687$ .

Specific Treatment Methods for Social Communication

For Communication Partners (JOINT Condition):
- Modifying Detrimental Communication Styles:
  - Reducing over-compensating behaviors such as speaking too slowly or infantilizing the TBI individual.
  - Avoiding leading or "testing" questions, shifting instead to open-ended and genuine inquiries.
  - Preventing interruption or speaking on behalf of the person with TBI.
  - Learning to provide appropriate non-verbal feedback (e.g., eye contact, affirmative nods) and verbal feedback (e.g., "I see," asking follow-up questions) to encourage participation.
  - Ensuring the TBI individual has sufficient time and opportunities to initiate and maintain conversational turns.
  - Consistently following up on information provided by the TBI person to demonstrate genuine interest and maintain conversational flow.
- Promoting Facilitative Strategies:
  - Implementing elaborative and collaborative techniques to build on topics and co-construct meaning.
  - Using scaffolding procedures to support the TBI individual's communication efforts without taking over the conversation.
  - Creating opportunities for the TBI person to demonstrate their competence and share information.
  - Establishing parallel goals between partners to ensure synchronous learning and application of strategies in real-world interactions.
For Individuals with TBI (TBI SOLO and JOINT Conditions):
- Enhancing Conversational Skills:
  - Training to initiate new topics effectively and appropriately.
  - Developing strategies for extending conversational topics by systematically addressing 'who, what, when, where, and why' aspects of events.
  - Learning techniques for appropriate turn-taking and maintaining conversational flow.
  - Improving awareness of social cues (e.g., body language, facial expressions) and adjusting communication responses accordingly.
  - Practicing functional communication strategies in various discourse types (e.g., casual chat, purposeful discussion).
- Self-Monitoring and Self-Correction:
  - Utilizing tape recordings of conversations for self-analysis and identifying areas for improvement.
  - Engaging in role-playing and guided practice to refine communication strategies in a safe environment.
  - Developing individualized plans for ongoing practice and generalization of learned skills into daily life.
- Fundamental Communication Concepts (Initial Sessions):
  - Education on the impact of TBI on communication skills.
  - Introduction to basic communication forms, purposes, and contexts.
  - Understanding the dynamic roles within communication and identifying common barriers and facilitators.