Using a vocabulary intervention to improve reading in English elementary schools

A phase III definitive RCT of vocabulary for reading in elementary schools in England

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN22178336

Enrollment

512

Registered

2024-06-13

Start date

2024-01-04

Completion date

Unknown

Last updated

2024-06-24

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

Conditions

Improve reading in English elementary schools Not Applicable

Interventions

The Vocabulary for Reading program study will be a Phase III definitive RCT. Students will be randomized to conditions at the school level (including up to 8 students from each school), complemented b

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Students in Years 3 and 4, from 64 elementary schools in England 2. Students who can read with relative accuracy but who struggle with vocabulary and comprehension

Exclusion criteria

Exclusion criteria: Low reading levels, as measured by their completion of the Phonics section of the NGRT adaptive reading test, preventing them from completing the passage comprehension section of the test.

Design outcomes

Primary

Measure	Time frame
Reading ability measured using the New Group Reading Test (NGRT digital version) at baseline (September 2024) and endline (June 2025)	—

Secondary

Measure	Time frame
Vocabulary measured using the Progress in Reading Assessment (PiRA digital version) at baseline (September 2024), midline (Feb-Mar 2025) and endline (June 2025)	—

Countries

England, Northern Ireland, United Kingdom

Contacts

Public ContactMaria Cockerill

maria.cockerill@qub.ac.uk+44 (0)28 9024 5133

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026