Diagnosing delayed cognitive development involves multiple steps:
1. Screening Tests: Tools like the Bayley Scales of Infant Development or the Ages and Stages Questionnaire help in early identification. 2. Developmental Milestones: Monitoring whether the child meets typical developmental milestones such as sitting, walking, and first words. 3. Neuroimaging: Techniques like MRI or CT scans can identify structural abnormalities in the brain. 4. Genetic Testing: Helps to identify any underlying genetic causes. 5. Specialist Evaluations: Pediatric neurologists, developmental pediatricians, and psychologists may conduct comprehensive assessments.