Interaction and Intervention Research Group studies language, speech and multimodal behaviour in human interaction, and interventions supporting people with communication challenges. The current projects include COMPAIR, MULTILINGUA, and VIRE. COMPAIR compares conversational repair practices in everyday interactions involving people with communication disorders, MULTILINGUA studies language development in 4-to-9-year-old multilingual children, and VIRE explores virtual reality game as a method of assessing 6-to-9 year-old children's social language comprehension.