At What Age Is the Griffiths III Used?

One gentle question parents often ask — at what age can the Griffiths III actually be used for my child?

In short

The Griffiths Scales of Child Development, 3rd edition (Griffiths III) is a structured, clinician-administered developmental assessment used from birth (0 months) up to 5 years and 11 months (just before the sixth birthday). Within that window it gently maps how a child is developing across several areas at once — so it is well suited to babies, toddlers and pre-schoolers, not older school-age children.

What the Griffiths III looks at

Rather than testing one skill in isolation, the Griffiths III observes the whole child across five connected developmental areas: foundations of learning, language and communication, eye-and-hand coordination, personal-social-emotional development, and gross motor skills. A trained, certified administrator engages your child through play-based and structured activities, watching how they respond, move, communicate and problem-solve. Because it spans the earliest years, it can be repeated over time to follow how a child grows and to see how they respond to support — making it a useful companion through the period when development moves fastest.

When it is typically used

This early age range is exactly when developmental review is most valuable. If you or your child's doctor have noticed differences in how your little one talks, plays, moves or connects, an assessment like the Griffiths III — chosen and administered by a qualified clinician — can help build a clear, strengths-based picture. It is one of several tools a clinician may select; the right choice always depends on your child's age and what is being explored.

The Pinnacle way

This is general information, not a diagnosis — a clinical AbilityScore® and any diagnosis are formed only at a Pinnacle Blooms Network centre, under qualified clinician care, never from an app or form. Our clinicians choose the most suitable structured assessment for your child's age and then build an individualised plan, which may draw on developmental assessment findings and supports such as speech therapy where helpful.

Trusted sources

WHO guidance on early childhood development and the Nurturing Care Framework; the American Academy of Pediatrics and HealthyChildren on developmental milestones and screening; ASHA on early communication development.

Next step — If your child is under six and you would like to understand their development, book a developmental review where a qualified clinician can select and administer the right assessment.