Rehacom or Wechsler Assessment Methodology in Cognitive Abilities of Normal Children: Correlation Study

September 11, 2026 updated by: Mostafa S Ali, Cairo University
The purpose of this study is to investigate the relationship between a computerized cognitive assessment tool (Rehacom) and a traditional intelligence scale (Wechsler Intelligence Scale for Children) in assessing cognitive abilities among typically developing children. Specifically, the study aims to determine whether Rehacom subtests (logical reasoning, memory for words, and visual field) correlate significantly with total Wechsler scores.

Study Overview

Status

Completed

Conditions

Detailed Description

Cognitive assessment in children requires reliable and valid measurement tools. Traditional paper-and-pencil intelligence tests, such as the Wechsler scales, are considered the gold standard; however, they require lengthy administration and significant examiner expertise. Computerized systems like Rehacom offer potential advantages including standardized administration, precise timing, and automated scoring. Nevertheless, the convergent validity between Rehacom and traditional measures in healthy children has not been thoroughly established. Prior research suggests that computerized cognitive tasks may share moderate variance with traditional IQ tests, particularly in domains such as logical reasoning and memory, but specific visual field tasks may assess distinct constructs. Therefore, empirical validation is needed to guide clinicians in interpreting Rehacom scores.

HYPOTHESES:

  1. There will be no significant correlation between Rehacom logical reasoning scores and total Wechsler scores.
  2. There will be no significant correlation between Rehacom memory for words scores and total Wechsler scores.
  3. There will be no significant correlation between Rehacom visual field measures and total Wechsler scores.

Study Type

Observational

Enrollment (Actual)

150

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Egypt
    • Giza Governorate
      • Giza, Giza Governorate, Egypt, 11432
        • Cairo University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child

Accepts Healthy Volunteers

Yes

Sampling Method

Probability Sample

Study Population

This study employs a cross-sectional correlational design. Following ethical approval and obtaining informed consent from parents or legal guardians, 150 typically developing children (age range 9-11 years) will be recruited from mainstream primary schools.

Description

Inclusion Criteria:

  • Age between 9 and 11 years.
  • Normal intellectual development and academic progress according to teacher reports.
  • No documented history of neurological, psychiatric, or learning disorders.

Exclusion Criteria:

  • Previous diagnosis of attention-deficit/hyperactivity disorder (ADHD), autism spectrum disorder (ASD), or intellectual disability.
  • History of significant head injury or chronic medical conditions affecting cognitive functioning.
  • Receiving special educational support services.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
logical reasoning
Time Frame: 2 weeks
it is measured by Rehacom Cognitive Assessment System and Wechsler Intelligence Scale for Children (appropriate edition) Average (90-110): Represents typical intellectual functioning for a person's age group.Low/High Average (80-89 / 110-119): Falls just below or above the typical average range.Gifted (130 and above): Indicates superior or highly advanced cognitive abilities.Extremely Low (69 and below): Suggests significant cognitive delays or intellectual disability.
2 weeks
memory for words
Time Frame: 2 weeks
it is measured by Rehacom Cognitive Assessment System and Wechsler Intelligence Scale for Children (appropriate edition) Average (90-110): Represents typical intellectual functioning for a person's age group.Low/High Average (80-89 / 110-119): Falls just below or above the typical average range.Gifted (130 and above): Indicates superior or highly advanced cognitive abilities.Extremely Low (69 and below): Suggests significant cognitive delays or intellectual disability.
2 weeks
visual field left
Time Frame: 2 weeks
it is measured by Rehacom Cognitive Assessment System and Wechsler Intelligence Scale for Children (appropriate edition) Average (90-110): Represents typical intellectual functioning for a person's age group.Low/High Average (80-89 / 110-119): Falls just below or above the typical average range.Gifted (130 and above): Indicates superior or highly advanced cognitive abilities.Extremely Low (69 and below): Suggests significant cognitive delays or intellectual disability.
2 weeks
visual field right
Time Frame: 2 weeks
it is measured by Rehacom Cognitive Assessment System and Wechsler Intelligence Scale for Children (appropriate edition) Average (90-110): Represents typical intellectual functioning for a person's age group.Low/High Average (80-89 / 110-119): Falls just below or above the typical average range.Gifted (130 and above): Indicates superior or highly advanced cognitive abilities.Extremely Low (69 and below): Suggests significant cognitive delays or intellectual disability.
2 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Cairo University

Investigators

  • Principal Investigator: Mostafa S. Ali, Phd, Cairo University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 20, 2026

Primary Completion (Actual)

June 20, 2026

Study Completion (Actual)

July 10, 2026

Study Registration Dates

First Submitted

September 7, 2026

First Submitted That Met QC Criteria

September 10, 2026

First Posted (Actual)

September 14, 2026

Study Record Updates

Last Update Posted (Actual)

September 15, 2026

Last Update Submitted That Met QC Criteria

September 11, 2026

Last Verified

September 1, 2026

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • P.T.REC/012/006626

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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