Training Second-grade Dyslexic Students Using a Computerized Program in Assiut, Egypt

Not Applicable

Completed

• Conditions: Dyslexia
• Interventions: Behavioral: Computerized Cognitive abilities training battery for reading (CATB-R)

• Registration Number: NCT04642859
• Lead Sponsor: Assiut University

Brief Summary

Dyslexia is a specific learning disability that is neurological in origin. It is characterized by difficulties with accurate or fluent word recognition, by poor spelling and decoding abilities, difficulty reading words in isolation and difficulty with oral reading (slow, inaccurate, or labored). These difficulties typically result from a deficit in the phonological component of language that is often unexpected with other cognitive abilities and the provision of effective classroom instruction. The phonological deficit hypothesis is the dominant explanatory theory of developmental dyslexia. Despite this, impaired phonological processing alone cannot explain all clinical symptoms of dyslexia. Many students with dyslexia have multiple deficits other than phonological deficits. Of these accused deficits are visual perceptual processing deficits, auditory processing deficits, multisensory spatial attention deficits as well as cerebellar dysfunction. The current mandatory criterion for the diagnosis of dyslexia, below-average achievement, implies waiting to failure. This approach for diagnosis (must fail approach) would delay intervention for rehabilitation.

Furthermore, the cut-off scores would result in over or under inclusion of cases and appear to be the least reliable and valid approach to diagnosis. Both methods lack a deeper understanding of the underlying reading difficulty, their neurobiological basis, and hence represent barriers against scientifically-based interventions. However, improved understanding of the neurobiological basis of dyslexia will facilitate evidence-based effective intervention.

Detailed Description

This study will be carried out along seven stages; 1- Identification of students with reading disability using Arabic Reading Achievement test (RAT); 2- Construction of a computerized Arabic Cognitive Abilities diagnostic battery for Reading (CADB-R); 3- Standardization of the constructed battery; 4- Detailed study of the cognitive profile; 5- Construction of a Computerized Cognitive abilities training battery for reading (CATB-R); 6- Application of the training battery; 7- Reassessment.

Study Timeline

• Study First Submitted: 2020-11-12
• Study Start: 2020-11-14
• Study First Submitted QC: 2020-11-22
• Study First Posted: 2020-11-24
• Primary Completion: 2021-02-01
• Study Completion: 2021-03-01
• Status Verified: 2022-04
• Last Update Submitted: 2022-04-30
• Last Update Posted: 2022-05-03

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 52

Inclusion Criteria

• 2nd-grade primary school students
• Poor scholastic achievement: less than mean - SD score on Arabic reading achievement test
• Normal neurological, basic audiological, and ophthalmological examination
• Both sexes included

Exclusion Criteria

• Student refused to participate
• Abnormal neurological, audiological or ophthalmological examination

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Dyslexia	Computerized Cognitive abilities training battery for reading (CATB-R)	Students with dyslexia before and after the intervention

Primary Outcome Measures

Name	Time	Method
Change in Arabic Reading Achievement test (RAT)	Baseline, 2 months	new scale of Arabic Reading Achievement test specially designed for this study. Students will classified according to their achievement level into three groups: 1. Group I: Poor achievers (scores \< mean - SD), considered students with reading disability, or dyslexia; 2. Group II: Average achievers (with scores= mean + SD); 3. Group III included those with good achievement (score \> mean+ SD)

Secondary Outcome Measures

Name	Time	Method
Change in Computerized Arabic Cognitive Abilities diagnostic battery for Reading (CADB-R)	Baseline, 2 months	Specially designed battery in a game-like manner to test a wide range of cognitive skills that are supposed to be important in the early stages of learning to read. It includes the following skills: 1. Text Reading comprehension; 2. Visual discrimination; 3. Auditory discrimination; 4. Phonological awareness; 5. Visuospatial skills; 6. Audio-Visual correspondence; 7. Auditory memory

Trial Locations

Locations (1)

Assiut University; 🇪🇬 Assiut, Egypt