How is Permanence assessed in a toddler?

When your toddler giggles as you peek out from behind your hands, they are showing you one of the loveliest milestones in early thinking — object permanence.

In short

Object permanence — knowing a person or toy still exists even when it's out of sight — is assessed by gentle, playful observation of how your toddler searches for hidden things, not by any single test. A clinician watches your child during familiar games (peek-a-boo, hiding a toy under a cloth), asks about everyday behaviour at home, and builds a picture against your child's own developmental stage. It is warm, play-based, and never a pass-or-fail exam.

How the assessment actually works

For a toddler aged roughly 12–36 months, permanence is read through play and curiosity. A skilled clinician looks at real moments:

• Hidden-object search — when a favourite toy is covered, does your child lift the cloth to find it?
• Peek-a-boo and hide-and-seek — does your child anticipate that you'll reappear, and look towards where you vanished?
• Searching the right place — older toddlers look where an object was last hidden, showing more mature memory.
• Caregiver conversation — you share what you see at home, such as your child looking for a dropped spoon or calling for a parent who has stepped away.
• Ruling out look-alikes — vision, attention, motor or hearing differences can mask searching, so the clinician thoughtfully tells them apart.

This usually unfolds over relaxed play, because young children show their best thinking when they feel safe.

When to seek a look

If by around 12–18 months your toddler shows little interest in finding hidden toys, doesn't anticipate a returning parent, or seems unusually unaware that things and people continue to exist out of view, a gentle developmental check is worthwhile. Early understanding builds confident learners.

The Pinnacle way

Developmental measurement supports care planning; diagnosis requires an appropriately qualified healthcare professional., under the care of a qualified clinician — never from an online figure or checklist. Our AbilityScore® is a clinician-administered structured assessment that reads your child against their own baseline. Backed by 2.5 billion+ data points and 25 million+ therapy sessions across 70+ centres, our clinicians turn playful observation into a practical plan. Learn more about Permanence, our special education support, and what the AbilityScore is and how it's calculated.

Trusted sources

CDC and HealthyChildren (AAP) milestones on early cognitive development and learning; WHO ICF framework for mental functions (b1).

Next step — Begin with understanding, not worry. Book an AbilityScore assessment with a Pinnacle clinician for a calm, caring read of your child's thinking.

This is general information, not a diagnosis — individual assessment and diagnosis require an appropriately qualified healthcare professional.