Scribes are not permitted as a reasonable adjustment when learners are required to show evidence of their writing skills in SQA National Literacy Units (see http://www.sqa.org.uk/sqa/64698.html) but the use of ICT is allowed:

“In order to minimise the disadvantage faced by some disabled learners in attaining the National Units in Literacy, the use of word processors and other assistive technologies such as screen readers, spell checkers or speech-recognition software would be acceptable as reasonable adjustments.”

(Specification 3 – Literacy Units http://www.sqa.org.uk/sqa/64702.html)

CALL Scotland have produced this excellent guide on what is required to meet the standard for National 3 Literacy Writing and what assistive technology can be used.  Click here to have a look.