Milestoneunknown· 4mo–10mo

Bangs one object with another

Unknown

What the research says

Framework evidence being indexed.

Full quotes, source languages, and document links coming soon as we finish the source-evidence indexing pass.

Normative evidence

2 sources back this milestone. The bars below show the age range each source covers.

Milestone windowNormative study

The coral bar shows this milestone's typical age window. The bars below show the age coverage of each backing source.

Stanford SHQ →WHO GSED →

What mastery looks like

Not yet

Shows no attempt to bangs one object with another

Shows no attempt to bangs one object with another
No observable behavior matching this milestone

Emerging

Occasionally or inconsistently bangs one object with another

Occasionally or inconsistently bangs one object with another
Requires significant support or prompting

Developing

Frequently bangs one object with another with some support

Frequently bangs one object with another with some support
Shows the behavior in familiar contexts

Secure

Consistently bangs one object with another across contexts

Consistently bangs one object with another across contexts
Performs independently without prompting

Reflexive

Readily bangs one object with another and extends the behavior

Readily bangs one object with another and extends the behavior
Shows flexibility and adaptation in approach

Activities for this (1)

physical4mo–12mo

Babble Burst

Parent observes early communication and grasp milestones: consonant sounds, babbling, object banging, grasping with and without thumb, pulling objects closer, and family recognition. Covers nine early language and manipulation milestones at 4-12mo.

Formal assessments

No matching assessment items indexed yet.

Standardised assessment view

1 instrument measure this construct. The construct page shows how each one approaches it and at what age range.

View as assessment construct →