Does Block Play Improve Language Acquisition: A Randomized Trial

Clinical Trial of Building Block Distribution in Children

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT00428376

Enrollment

200

Registered

2007-01-30

Start date

2005-09-30

Completion date

2006-09-30

Last updated

2008-09-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy

Brief summary

This is a randomized controlled trial of distributing blocks to children ages 1.5 -2.5 years of age to see if language acquisition improves.

Detailed description

Children in age group are randomized to get two sets of blocks or not. Outcomes include language development assessed using the Macarthur Bates CDI 6 months after enrollment.

Interventions

DEVICEBuilding Blocks

Study design

Allocation

RANDOMIZED

Intervention model

SINGLE_GROUP

Masking

SINGLE

Eligibility

Sex/Gender

ALL

Age

18 Months to 30 Months

Healthy volunteers

Yes

Inclusion criteria

* healthy children

Exclusion criteria

* developmental delay, non-English

Design outcomes

Primary

Measure	Time frame
Macarthur Bates Language Inventory	—

Secondary

Measure	Time frame
TV viewing	—
Block play	—

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026