 The Luria model takes 25–60 minutes to administer while the CHC model takes 30–75 minutes to administer depending on the child’s age.The KABC-II was standardised between 2001 and 2003 on 3,025 3- to 18-year-olds in 39 states and the District of Columbia.The KABC-II is co normed with the KTEA-II (Kaufman & Kaufman, 2004b).