Table 2.

Average number of communication turns, and use of communication modes, during baseline and intervention.

Mode of communication	Deidre		Nick		Wayne		Lexi
	Baseline	Intervention	Baseline	Intervention	Baseline	Intervention	Baseline	Intervention
Speech	0	27	9	32	0	0	13	31
Sign/gesture	0	2	0	0	0	0	0	0
Speech and sign/gesture	0	2	0	0	0	0	0	0
AAC technology	0	15	0	16	0	18	0	27
Total	0	46	9	48	0	18	13	58

Note. AAC = augmentative and alternative communication.