Evaluating the Research on the Instruction of Literacy with Language (RILL) intervention programme for children learning through the medium of English

Evaluating the English-medium Research on the Instruction of Literacy with Language (RILL) intervention programme for children with reading difficulties, aged 7 - 9 years old, compared with age-matched, wait-list control children on reading and language measures

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN18940975

Enrollment

400

Registered

2022-09-27

Start date

2022-09-01

Completion date

Unknown

Last updated

2026-05-19

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

Conditions

Children with reading difficulties (e.g., developmental dyslexia) Mental and Behavioural Disorders

Interventions

Current interventions as of 23/05/2023: Children are randomly allocated, within their class, to the intervention and the waitlist control arm of the study. Children in the intervention arm will receiv

Eligibility

Sex/Gender

All

Age

7 Years to 9 Years

Inclusion criteria

Inclusion criteria: Current participant inclusion criteria as of 23/05/2023: 1. Children aged 7 - 9 years old 2. Undertaking English-language instruction at school 3. Normal or corrected-to-normal vision and hearing 4. Identified as having literacy difficulties via a reading screener Previous participant inclusion criteria: 1. Children aged 8 - 10 years old 2. Undertaking English-language instruction at school 3. Normal or corrected-to-normal vision and hearing 4. Identified as having literacy difficulties via a reading screener

Exclusion criteria

Exclusion criteria: Children not in a mainstream school setting

Design outcomes

Primary

Measure	Time frame
Current primary outcome measures as of 23/05/2023: The following primary outcome measures are assessed at baseline, post-test (following the intervention, which is +15 weeks) and follow-up (+ an additional 15 weeks) and reflect two latent literacy variables: 1. Word-level reading measured using measures created from single-word reading, single-word spelling, word fluency and pseudoword fluency taken from Word Reading Accuracy (Wide Range Achievement Test 5th edition; WRAT-5) 2. Reading comprehension measured using the York Assessment of Reading for Comprehension Passage Reading (YARC Passage Reading) Previous primary outcome measures: Latent literacy measured using a variable created from the measures of single-word reading, single-word spelling and passage-reading accuracy used at each timepoint from baseline (pre-test) to post test (15 weeks)	—

Measure

Time frame

Current primary outcome measures as of 23/05/2023: The following primary outcome measures are assessed at baseline, post-test (following the intervention, which is +15 weeks) and follow-up (+ an additional 15 weeks) and reflect two latent literacy variables: 1. Word-level reading measured using measures created from single-word reading, single-word spelling, word fluency and pseudoword fluency taken from Word Reading Accuracy (Wide Range Achievement Test 5th edition; WRAT-5) 2. Reading comprehension measured using the York Assessment of Reading for Comprehension Passage Reading (YARC Passage Reading) Previous primary outcome measures: Latent literacy measured using a variable created from the measures of single-word reading, single-word spelling and passage-reading accuracy used at each timepoint from baseline (pre-test) to post test (15 weeks)

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Secondary

Measure	Time frame
Current secondary outcome measures as of 23/05/2023: The secondary outcome measures include those measuring the language skills of phonemic awareness (Multilanguage Assessment Battery of Early Literacy; MABEL) and vocabulary (expressive vocabulary assessment of items taught during the RILL programme itself). Measures are taken at baseline, post-test (following the intervention, which is +15 weeks) and follow-up (+ an additional 15 weeks). Previous secondary outcome measures: 1. Phoneme awareness measured using MABEL phoneme deletion in English and Welsh at pre and post test 2. Vocabulary measured using a criterion reference test at pre and post test 3. Rapid naming measured using the MABEL test battery at pre and post test	—

Measure

Time frame

Current secondary outcome measures as of 23/05/2023: The secondary outcome measures include those measuring the language skills of phonemic awareness (Multilanguage Assessment Battery of Early Literacy; MABEL) and vocabulary (expressive vocabulary assessment of items taught during the RILL programme itself). Measures are taken at baseline, post-test (following the intervention, which is +15 weeks) and follow-up (+ an additional 15 weeks). Previous secondary outcome measures: 1. Phoneme awareness measured using MABEL phoneme deletion in English and Welsh at pre and post test 2. Vocabulary measured using a criterion reference test at pre and post test 3. Rapid naming measured using the MABEL test battery at pre and post test

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Countries

United Kingdom, Wales

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: May 22, 2026