Process evaluation of a complex intervention in augmentative and alternative communication care in Germany: a mixed...

Area of Science:

• Augmentative and Alternative Communication (AAC)
• Healthcare Interventions
• Speech-Language Pathology

Background:

• Lack of clear care pathways for AAC in Germany hinders sustainable implementation.
• A complex intervention was developed to support AAC users, including training, therapy, and case management.
• This study evaluates the process of this complex intervention.

Purpose of the Study:

• To evaluate a complex intervention for augmentative and alternative communication (AAC).
• To assess caregiver and consultant ratings of the intervention.
• To identify contextual factors influencing AAC implementation and system use.

Main Methods:

• Mixed methods design utilizing longitudinal surveys of caregivers and semi-structured focus group interviews.
• Quantitative analysis involved descriptive statistics and nonparametric comparisons.
• Qualitative analysis employed structured qualitative content analysis.

Main Results:

• Intervention elements, including AAC training, therapy, and case management, were positively rated.
• The intervention facilitated effective AAC system use in various contexts.
• Higher acceptance, use competence, and system utilization were observed in the intervention group compared to the control group.

Conclusions:

• Contextual factors significantly influence the implementation of AAC interventions.
• The evaluated intervention shows potential for improving AAC care and promoting sustainable system use.
• Findings offer insights for adapting AAC interventions for successful real-world implementation.