Analysis of information sources in references of the Wikipedia article "Scots language" in English language version.
Whereas Modern Standard English is traced back to an East Midland dialect of Middle English, Modern Scots developed from a northern variety which goes back to Old Northumbrian
Menzies (1991:42) also found that in her sample of forty secondary-school children from Easterhouse in Glasgow, there was a tendency to describe Scots words as 'slang' alongside the use of the term 'Scots'