Table 1.

Participant characteristics: mean (S.D.) of age (in years), non-verbal IQ centile and speechreading (TAS) raw and z-scores

	Age	NVIQ centile	TAS	TAS z-score
Deaf (n = 13, 6 female)	27.4 (7.76) range: 18–49	88.2 (13.3) range: 50–98	32.54 (3.07) range: 27–37	0.436 (0.59) range: −0.62–1.29
Hearing (n = 13, 6 female)	29.4 (6.15) range: 18–43	83.2 (19.6) range: 25–99	25.08 (4.89) range: 15–34	0.183 (1.07) range: −2.02–2.14