Sa. Cooper et Ra. Collacott, THE EFFECT OF AGE ON LANGUAGE IN PEOPLE WITH DOWNS-SYNDROME, JIDR. Journal of intellectual disability research, 39, 1995, pp. 197-200
It has been previously suggested, in a small-sized study of 60 people
with Down's syndrome, that receptive language skills were lower, the o
lder the individual, whereas expressive language skills did not correl
ate with age (Carter-Young and Kramer 1991). By assessing language ski
lls on 345 Down's syndrome adults living in Leicestershire (98% of the
total population), the present authors have been able to confirm this
finding, using the AAMD Adaptive Behaviour Scale. This may have clini
cal relevance with regard to communication with older people with Down
's syndrome, and also for estimation of an individual's skill level wh
en he or she was younger.