The Graphic Online Language Diagnostic (GOLD) is a web-based easy-to use assessment instrument. It enables language teachers to create their own corpora from their students' spoken and written performance and to analyze and benchmark student performance. It also allows teachers to trace the development of individual students or groups of students over time.
Buy Learning-Oriented Assessment in Language Classrooms: Using Assessment to Gauge and Promote Language Learning by James E. Purpura, Carolyn E. Turner (ISBN: 9780415813723) from Amazon's Book Store. Free UK delivery on eligible orders.