Kirch Developmental Services Center Preparing for the Initial Evaluation? The initial evaluation will vary depending on the type and number of providers your child will see. Initial evaluations may last anywhere from 1½ to 4 hours. Come prepared with toys or activities your child enjoys, as well as snacks and comfort items that will help your child pass the time. If possible, avoid bringing siblings or other children, as this often makes it difficult for parents or caregivers to be able to fully hear and understand information given by the evaluator. If at all possible, do bring a second adult, either a parent or a support person. Having a second adult present can help ensure all your questions are answered. This may also allow for one adult to take the child out of the room, if necessary, for breaks or while information is shared with the parent or caregiver.