A new edition (fourth) of one of the most widely used and highly regarded assessment tools for identifying speech and language delays and impairments in very young children. Provides Speech and Language Therapists with diagnostic information about a child's production and understanding of spoken language. Up-to-date in terms of both good practice and the latest research. Play-based activities with a range of stimulus material. Full colour illustrations. Includes the ‘Multi-lingual Toolkit' handbook for guidance on how to adapt and use NRDLS with children for whom English is an additional language. For children 2 years to 7 years 5 months.