What Developmental Evaluations Look Like
The short answer
A developmental evaluation is a thorough, play-based assessment that looks at how your child communicates, moves, thinks, and interacts. It is not a pass-or-fail test - it is a way to understand your child's unique strengths and areas where they may benefit from support. The process is gentle, child-led, and designed to help, not to label.
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By Age
What to expect by age
Evaluations at this age focus on reflexes, muscle tone, visual tracking, and early responses to sound and touch. The evaluator will observe how your baby moves, how they respond to your voice, and how they react to being held in different positions. These assessments are typically brief and non-invasive.
At this stage, evaluators look at head control, early reaching and grasping, social smiling, cooing, and how your baby engages with people and objects. They may gently position your baby in different ways to assess muscle tone and symmetry. You will likely be asked questions about your baby's daily routines, feeding, and sleep.
Evaluations become more interactive as your baby has more skills to demonstrate. Evaluators observe sitting, crawling, babbling, response to their name, and early problem-solving like reaching for hidden toys. They often use standardized tools like the Bayley Scales or the ASQ (Ages and Stages Questionnaire) alongside clinical observation.
This is a common age for first evaluations. The assessment typically looks at walking, first words, pointing, pretend play, and how your child interacts with you and the evaluator. The session is usually play-based - the evaluator engages your child with toys, books, and activities while carefully observing specific skills. You will be asked detailed questions about your child's daily life and developmental history.
Evaluations at this age assess language comprehension and expression, fine and gross motor skills, problem-solving, social interaction, and self-help skills like feeding and dressing. The evaluation may involve multiple professionals - such as a speech therapist, occupational therapist, and psychologist - over one or more sessions. The team will share their findings with you and discuss recommendations.
What Should You Do?
When to take action
- Feeling anxious or nervous before your child's evaluation - this is a completely normal response for any caring parent
- Your child does not perform their best during the evaluation - evaluators are trained to account for unfamiliar settings and off days
- The evaluation takes longer than expected - thoroughness is a good sign that the team is being careful
- The evaluator asks many detailed questions about your pregnancy, birth, and family history - this context helps them understand the full picture
- You have specific concerns or observations you want the team to know about - write them down and bring them to the appointment
- Your child has had a recent illness, poor sleep, or major disruption that might affect their performance during the evaluation
- You disagree with the evaluation findings - you have the right to request a re-evaluation or seek a second opinion
- You need help understanding the results or what the recommended next steps mean for your child
- Your child has lost previously acquired skills such as words, motor abilities, or social engagement - request an urgent evaluation rather than waiting for a scheduled one
- You have been waiting an excessively long time for an evaluation and your child's development appears to be falling further behind - contact your state's early intervention program to self-refer, as you do not need a doctor's order
Sources
Related Resources
Trust your instincts. If something feels wrong, reach out to your pediatrician.
Worrying about your baby means you care. That is a good thing.
Related Medical Concerns
My Baby's Head Shape Looks Abnormal
Many babies develop temporary head shape irregularities that are completely normal. A cone-shaped head from vaginal delivery reshapes within days. Mild positional flattening (plagiocephaly) from sleeping on the back is very common and usually improves with repositioning and tummy time. However, head shape changes involving ridges, a persistently bulging fontanelle, or rapid head growth changes should be evaluated to rule out craniosynostosis.
Achondroplasia (Dwarfism) in Babies
Achondroplasia is the most common form of short-limbed dwarfism, affecting about 1 in 15,000 to 40,000 births. It is caused by a mutation in the FGFR3 gene and is usually apparent at birth with characteristic features including short limbs, a larger head, and a prominent forehead. Intelligence is normal. With monitoring for specific complications and supportive care, children with achondroplasia lead full, active, and independent lives.
Adenoid Hypertrophy and Breathing
Adenoids are lymphoid tissue located behind the nose that help fight infection in young children. When adenoids become enlarged (adenoid hypertrophy), they can block the nasal airway, causing chronic mouth breathing, snoring, nasal speech, and sleep-disordered breathing. Enlarged adenoids are most common between ages 2-7 and are a leading cause of obstructive sleep apnea in young children. Treatment ranges from watchful waiting and nasal steroids to surgical removal (adenoidectomy) if breathing or sleep is significantly affected.
How to Advocate for Your Child's Needs
You know your child better than anyone, and your observations matter. If you feel something is not right with your child's development or health, you have every right to ask questions, request evaluations, and seek second opinions. Advocating for your child is not being difficult - it is being a good parent.
Air Quality and Baby Health
Babies and young children are more vulnerable to air pollution than adults because they breathe faster, their lungs are still developing, and they spend more time close to the ground where some pollutants concentrate. The EPA recommends keeping babies indoors when the Air Quality Index (AQI) exceeds 100 (orange level). During wildfire smoke events, keep windows closed, use air purifiers with HEPA filters, and monitor your child for coughing, wheezing, or difficulty breathing. Long-term exposure to air pollution can affect lung development.
Altitude Sickness in Babies
Babies and toddlers can experience altitude sickness when traveling above 5,000-8,000 feet (1,500-2,500 meters). Symptoms are harder to recognize in infants because they cannot describe how they feel. Watch for unusual fussiness, poor feeding, disrupted sleep, vomiting, and fast breathing. Gradual ascent is the best prevention. Most pediatricians recommend avoiding sleeping at very high altitudes (above 8,000 feet) with infants when possible, and descending immediately if symptoms appear.