Twenty-four deaf participants (5–15 years of age) were recruited from five
programs, namely three Deaf schools and two units/resource bases, in different
regions of the United Kingdom. All program used BSL as a means of instruction. Their average age (12 males/12 females) was 11 years, 2 months. Table 1
shows individual participant characteristics. All participants had a hearing loss
in the severe to profound range (>70 dB) in their better ear. They were either
native signers from deaf families or strong signers and all used BSL as their
preferred means of communication. Testing was performed in a quiet room at
each participant’s school