Home Latest PostsLatest News - See below information about assessment opportunities for S4,5,6 National Qualifications Welcome to the Castle Douglas High School website Castle Douglas development group would like your opinions on what you would like to see for young people in Castle Douglas. Please complete the survey using the link below. Survey Link S4, S5 and S6 formal assessment opportunities for SQA National Qualifications Alternative certification model info for parents Formal Assessment Week One 19 4 21 Formal Assessment Week Two 26 4 21