Shaping children’s sentences: trialling visual support for children with language difficulties using the SHAPE CODING system in mainstream primary schools

ISRCTN ISRCTN96114973
DOI https://doi.org/10.1186/ISRCTN96114973
Submission date
14/05/2024
Registration date
17/05/2024
Last edited
28/06/2024
Recruitment status
Recruiting
Overall study status
Ongoing
Condition category
Mental and Behavioural Disorders
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English Summary

Background and study aims
Developmental Language Disorder (DLD) affects 7% of children; approximately two in every mainstream classroom. However, specialist Speech and Language Therapy (SLT) services for children with DLD are very limited, thus the effectiveness and efficiency of an intervention need to be maximised through the identification of appropriate targets and effective procedures and delivery of an appropriate dosage. Children with DLD have particular difficulties with grammar, which affects their ability to communicate with others and access the academic curriculum. Previous studies indicate that SLT intervention can improve the production of grammar in children with DLD. The SHAPE CODING system is a highly individualised intervention for children with DLD (and indeed wider language disorders), which teaches children the rules of grammar using the support of a visual system which represents the different aspects of grammar with shapes (for groups of words in a sentence playing different roles), colours (for different word classes, e.g., nouns, verbs, adjectives), arrows (for tenses) and lines (for singular versus plural). The effectiveness of SLTs using the system to improve the language of children with (D)LD has been evaluated in specialist settings. The intervention has recently been developed to include individualised identification of targets and detailed intervention steps https://shapecoding.com/resources. A recent study showed that this approach, together with a feedback hierarchy, was effective at improving the use of the targeted constructions in children (aged 7-10 years) with severe levels of DLD in a special school. Indeed, this method was more efficient than the previous methods used in the school, with the SLT focusing on 2-4 times as many targets over 2 terms. A pilot study was also carried out that investigated the feasibility of SLT delivery of the same intervention in mainstream primary schools with 7 children with DLD in years 3/4 (aged 7-8 years) in two mainstream primary schools with similar results. This study aims to investigate the effectiveness of the SHAPE CODING intervention in new settings with new interventionists and with a wider age group (aged 5-10 years) by carrying out a randomised control trial in mainstream schools.

Who can participate?
Children in school years 1-5 (aged 5-9 years old) at the start of the intervention who are either already on an SLT caseload or for whom there are concerns about their language development. Only children with difficulties with expressive grammar will be included, so the study will exclude those standard scores in the typical range on either of the two standardised grammar tests

What does the study involve?
The study team will partner with SLT practices that provide SLT services to schools. They will approach schools they work in and ask if they would like to participate in the project. If the headteacher consents, the SLT will then collaborate with the school to identify children who will be in years 1-5 (aged 5-9 years old) at the start of the intervention, and who are already on the SLT caseload, or for whom there are concerns about language development. The parents of these children will be sent an information sheet and consent form.

For children whose parents consent, the SLT will meet with the children to gain their consent and will then administer two standardized assessments (Structured Photographic Expressive Language Test - 3; Clinical Evaluation of Language Fundamentals (CELF)-5, Formulated Sentences subtest) to ensure that grammar is an area of difficulty. Those with a standard score above 95 on the SPELT-3 or above 6 on the CELF-5 Formulated Sentences subtest will be excluded from the study, as they are unlikely to benefit from the intervention.

Participants will then be randomly assigned to an intervention versus control group. Those in the intervention group will receive 20 half-hour sessions of 1:1 SLT intervention focusing on individualised grammatical targets, using the SHAPE CODING system. The SHAPE CODING system is a highly individualised intervention for children with DLD (and indeed wider language disorders), which teaches children the rules of grammar using the support of a visual system which represents the different aspects of grammar with shapes (for groups of words in a sentence playing different roles), colours (for different word classes, e.g., nouns, verbs, adjectives), arrows (for tenses) and lines (for singular versus plural). The intervention has recently been developed to include individualised identification of targets and detailed intervention steps https://shapecoding.com/resources. Those in the control group will receive usual support (intervention for other areas of speech and language, an SLT programme or school intervention).

What are the possible benefits and risks of participating?
It is hoped that the participants in the intervention group will benefit from an intervention which aims to enhance their understanding and use of a range of grammatical structures in English. This should increase their access to the school curriculum and improve their everyday interactions with others. However, children in the intervention arm will miss lessons to participate in this research.

Children in the control group will not receive the intervention for grammar during the two terms of the project. However, detailed information will be gathered about their language that can be used to inform their support following the completion of the project. They can continue to have intervention as usual in other areas of speech, language and communication.

Where is the study run from?
The study is a partnership between University College London and Moor House School & College. The research team will also partner with SLT services in the South East.

When is the study starting and how long is it expected to run for?
December 2023 to December 2031

Who is funding the study?
Moor House School & College

Who is the main contact?
Dr Susan Ebbels, ebbelss@moorhouseschool.co.uk

Contact information

Dr Susan Ebbels
Public, Scientific, Principal Investigator

Moor House School & College, Mill Lane
Oxted
RH8 9AQ
United Kingdom

ORCiD logoORCID ID 0000-0003-0402-6227
Phone +44 (0)1883 712271
Email ebbelss@moorhouseschool.co.uk

Study information

Study designMulticentre interventional single-blind randomized controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)School
Study typeTreatment
Participant information sheet Not available in web format, please use contact details to request a participant information sheet
Scientific titleShaping children’s sentences: for children aged 5-10 years with language difficulties in mainstream primary schools, do those receiving intervention using the SHAPE CODING system make greater gains than those in a control group who receive usual support (intervention for other areas of speech and language, an SLT programme or school intervention) on expressive language as measured by a grammar factor combining six grammatical measures
Study hypothesisH1: Participants in the intervention group will show significantly greater improvement following intervention relative to those in the control group in their grammatical abilities as measured on a combined grammar factor.

H2: Participants in the intervention group will show significantly greater improvement following intervention relative to those in the control group on a standardised measure of sentence formulation.
Ethics approval(s)

Approved 04/03/2024, UCL Research Ethics Committee (UCL REC) (Research and Innovation Services, 2 Taviton St, London, WC1E 6BT, United Kingdom; +44 (0)20 7679 8717; ethics@ucl.ac.uk), ref: 23949/002

ConditionIntervention aiming to improve expressive language in children with language difficulties (including Developmental Language Disorder, DLD)
InterventionThis study aims to investigate the effectiveness of SHAPE CODING intervention for children with language difficulties (including DLD) aged 5-10 years old in mainstream schools by carrying out a 4-stage sequential design study. The study team will partner with private speech and language therapy practices that provide Speech and Language Therapy (SLT) services to schools. They will approach schools they work in and ask if they would like to participate in the project. If the headteacher consents, the SLT will then collaborate with the school to identify children who will be in years 1-5 (aged 5-9 years old) at the start of the intervention, and who are already on the SLT caseload, or for whom there are concerns about language development. The parents of these children will be sent an information sheet and consent form.

For children whose parents consent, the SLT will meet with the children to gain their consent and will then administer two standardized assessments (Structured Photographic Expressive Langauge Test - 3; Clinical Evaluation of Language Fundamentals (CELF)-5, Formulated Sentences subtest) to ensure that grammar is an area of difficulty. Those with a standard score above 90 on the SPELT-3 or above 6 on the CELF-5 Formulated Sentences subtest will be excluded from the study, as they are unlikely to benefit from the intervention.

The study uses the R package “carat” to carry out adaptive covariate randomisation using Hu and Hu’s randomisation using the command-line user interface to assign participants to groups sequentially. The study will use a biased coin probability of 0.85 and the following covariates (with double weight assigned to SLT):
• Year group (1, 2, 3, 4, 5)
• SLT (1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
• CELF Formulated Sentences raw score (0-15, 16-20, 21-26)

Those in the intervention group will receive 20 half-hour sessions of 1:1 Speech and Language Therapy (SLT) intervention focusing on individualised grammatical targets, using the SHAPE CODING system. The SHAPE CODING system is a highly individualised intervention for children with DLD (and indeed wider language disorders), which teaches children the rules of grammar using the support of a visual system which represents the different aspects of grammar with shapes (for groups of words in a sentence playing different roles), colours (for different word classes, e.g., nouns, verbs, adjectives), arrows (for tenses) and lines (for singular versus plural). The intervention has recently been developed to include individualised identification of targets and detailed intervention steps https://shapecoding.com/resources.

Those in the control group will receive usual support (intervention for other areas of speech and language, an SLT programme or school intervention).
Intervention typeBehavioural
Primary outcome measureThe creation of a grammar factor is assessed using the following measures at pre- and post-intervention in both the intervention and control groups:
1. Raw score on the SPELT-3
2. ACE narrative syntax raw score
3. Receptive grammar: TROG-E blocks passed
4. Three measures of grammatical accuracy and complexity in narratives (ERRNI – Story B) and ACE narrative combined):
4.1. Mean length of utterance (MLU)
4.2. Clausal density (number of clauses/number of utterances)
4.3. Grammatical errors per utterance
Secondary outcome measuresSemantics, morphology, syntax, and pragmatics measured using the CELF-5 Formulated Sentences raw score at pre- and post-intervention in both the intervention and control groups
Overall study start date01/12/2023
Overall study end date31/12/2031

Eligibility

Participant type(s)Learner/student, Service user
Age groupChild
Lower age limit5 Years
Upper age limit10 Years
SexBoth
Target number of participantsFollowing our sequential analysis design plan, our target sample size is up to 260 participants in total, with interim analyses conducted at n = 40, n = 80 and n = 140.
Participant inclusion criteriaCurrent inclusion criteria as if 28/06/2024:

1. Children in school years 1-5 (aged 5-9 years old) at the start of the intervention
2. Either already on the SLT caseload or there are concerns about their language development
3. Difficulties with expressive grammar with a standard score below 95 on the SPELT-3, and a scaled score below 7 on the CELF-5 Formulated Sentences subtest

____

Previous inclusion criteria:

1. Children in school years 1-5 (aged 5-9 years old) at the start of the intervention
2. Either already on the SLT caseload or there are concerns about their language development
3. Difficulties with expressive grammar with a standard score below 90 on the SPELT-3, and a scaled score below 7 on the CELF-5 Formulated Sentences subtest
Participant exclusion criteria1. Children with a standard score above 90 on the SPELT-3, or
2. Children with above 6 on the CELF-5 Formulated Sentences subtest
Recruitment start date20/05/2024
Recruitment end date01/06/2030

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centres

University College London
WC1E 6BT
United Kingdom
Moor House School & College
Mill Lane
Hurst Green
Oxted
RH8 9AQ
United Kingdom

Sponsor information

University College London
University/education

UCLH/UCL Joint Research Office, part of the Research Directorate
4th Floor, West
250 Euston Road
London
London
NW1 2PG
England
United Kingdom

Phone +44 (0) 20 7679 2000
Email pushpsen.joshi1@nhs.net
Website https://www.ucl.ac.uk/
ROR logo "ROR" https://ror.org/02jx3x895

Funders

Funder type

University/education

Moor House School & College

No information available

Results and Publications

Intention to publish date31/12/2032
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryStored in publicly available repository
Publication and dissemination planPlanned publication in a high-impact peer-reviewed journal
IPD sharing planThe datasets generated during and/or analysed during the current study will be stored in a publicly available repository, the Open Science Framework at: https://osf.io/adxcz. Consent is obtained from both children and their parents. All shared data will be anonymised.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Protocol (other) 17/04/2024 15/05/2024 No No
Statistical Analysis Plan 17/04/2024 16/05/2024 No No

Editorial Notes

28/06/2024: The inclusion criteria were changed.
28/05/2024: The sponsor email was added.
15/05/2024: Study's existence confirmed by the UCL Research Ethics Committee.