What neurodevelopment tool is used for cognitive assessment of children younger than 36 months?

The cognitive adaptive test is a valuable tool used for assessing the cognitive abilities of children younger than 36 months. This assessment focuses on how well a child can adapt to their environment, showcasing their problem-solving skills and understanding of the world around them. The cognitive adaptive test evaluates various domains including language and reasoning, providing insights into developmental milestones in early childhood.

The other options, while related to assessments in early childhood development, serve different purposes or age groups. The M-CHAT is specifically designed for screening autism spectrum disorders in toddlers, rather than providing a broad cognitive assessment. The Ages and Stages questionnaire addresses developmental milestones, but it isn't solely focused on cognitive abilities; it also includes social-emotional, language, and motor skills. The Denver II is primarily used for overall developmental screening, assessing multiple domains beyond just cognition. Therefore, the cognitive adaptive test is the most appropriate choice for assessing cognitive development specifically in children younger than 36 months.