The Larsen-Hammill test of written spelling, TWSStephen C. Larsen · First published 1976Open the Tome
Written Language Observation Scale (WLOS)Donald D. Hammill, Stephen C. Larsen · First published 2009Open the Tome
Assessing the writing abilities and instructional needs of studentsStephen C. Larsen · First published 1987Open the Tome