Dr. Omar A. Alsamani/Open Library/Diagnosis and Identification of Exceptional Learners العربية

Diagnosis and Identification of Exceptional Learners

Learners with disabilities, the gifted and the twice-exceptional

How, and when, do we conclude that a student has a disability, a disorder, giftedness or twice-exceptionality? This book traces the stages of diagnosis and identification systematically, from referral and the gathering of evidence to its interpretation and the decisions built on it. It presents internationally established instruments as they look and as they are actually administered, and reads them in light of Saudi regulations and Arabic-language tools.

Four partsFifteen chaptersFive appendicesMore than forty casesInstrument profiles
Dr. Omar A. Alsamani · First edition, 1448 AH / 2026 CE · Legal deposit no.: 1448/7008 · ISBN: 978-603-06-7714-6 · Creative Commons license CC BY-NC-ND 4.0
How to cite this book
Alsamani, O. A. (2026). Diagnosis and Identification of Exceptional Learners: Learners with disabilities, the gifted and the twice-exceptional. https://doi.org/10.5281/zenodo.23599735

IntroductionAbout this book

Many who work with children find themselves facing much the same questions. A child does not turn when his name is called: does he have autism spectrum disorder? A girl reads very slowly despite her apparent intelligence: does she have a learning disability? A boy is years ahead of his peers in mathematics yet struggles with writing: is he gifted, does he have a problem, or are both true at once? And a report crowded with numbers: what do they actually mean?

In this book we set out to answer these questions systematically. We do not stop at defining categories and listing their criteria; we take up the details that are so often overlooked: what an instrument really looks like, how a testing session is conducted, who is qualified to administer it, how its results are read, and when the evidence is sufficient to reach a judgment and when it falls short. We have also chosen to bring together in a single volume what the literature usually keeps apart: disabilities and disorders on the one hand, and giftedness and twice-exceptionality on the other, since the same student may need to be viewed from both sides at once.

This is why the title pairs “diagnosis” with “identification.” In gifted education, identification is an educational process whose purpose is to determine who needs gifted services; it is not a diagnosis, because giftedness is not a disorder. It begins with the program's definition, draws on multiple criteria and local norms, and ends in a decision to provide services. In the field of disabilities, identification is tied to determining eligibility for services, and it runs alongside a clinical diagnosis grounded in DSM or ICD criteria.

We read the international standards (DSM-5-TR and ICD-11) and the detailed American experience (IDEA) in light of published Saudi regulations. Each category chapter therefore includes a table comparing the three frameworks, and where we found no published provision we say so rather than assume one. Every instrument profile describes the status of the instrument's Arabic version, and each category chapter closes with a summary of the Arabic tools and studies that have been published.

The principle behind the book

A diagnostic judgment does not rest on a single instrument but on the convergence of evidence from multiple sources: observation, interviews, standardized measures, developmental history and formal diagnostic criteria. Every score is a range, not a point; ruling out comes before ruling in; and every judgment is provisional and open to revision. These principles recur throughout the book, and the cases test them from different angles, including cases in which the student is not diagnosed.

GuidanceHow to use this book

We have taken care to make each chapter self-contained: its cases and examples are complete within it, and the core concepts it relies on are briefly explained, with a parenthetical cross-reference to the chapter that treats them in depth for readers who want more. Readers can therefore begin with whichever chapter concerns them. Reading in sequence, however, builds a deeper understanding: Part One lays down a shared language, Part Two presents the tools for gathering evidence, Part Three applies them to the categories, and Part Four addresses the fairness of judgment and what follows from it.

The teacher's pathChapter 1, then Chapter 4 (observation and curriculum-based measurement), then the chapter on the category that concerns you, then Chapter 15 (reading the report and the plan).
The assessment team's pathChapters 2 and 3 for the measurement foundation, then Chapter 6 (identification models), then the category chapters, then Chapter 14 (fairness).
The giftedness pathChapter 2 (floor, ceiling and norms), then Chapter 6 (combination rules), then Chapters 12 and 13, then the section on gifted decisions in Chapter 15.
The path for families and decision makersChapter 1, then Chapter 15, then the summary of the relevant category chapter and its decision pathway, then Appendix B for terminology.

How is a chapter structured?

All chapters share a common structure, and the category chapters (7–13) add elements of their own:

1Scene and objectivesA realistic situation opens the chapter, followed by measurable behavioral objectives, each matched by a question or activity.
2Concept and criteriaThe definition in DSM-5-TR, ICD-11, IDEA and Saudi regulations, with a box comparing it to the international classification.
3Decision pathwayA flowchart from the first indicators to the final judgment, beginning with hearing and vision screening before any diagnostic tool.
4Instrument profilesFor each tool: its rationale, its format, a scene of its administration and a data table (ages, qualifications, scores, Arabic version), followed by its interpretation and limitations.
5When a judgment can be madeCases with numbers across different ages and stages, some in which the diagnosis is confirmed and some in which it is not, followed by differential diagnosis and co-occurrence.
6Conclusion and assessmentA summary, a glossary, questions tied to the objectives, a new unsolved “Case for application,” activities with ethical safeguards, and references.

Guide to the boxes

For the teacher
The teacher's role and classroom tools.
Example or local context
An example that makes an idea concrete, or what Saudi and Arab regulations and studies have to say.
Key idea
A rule or conclusion worth remembering.
Caution
A common error or professional pitfall.
Misconception
A widespread belief that research corrects.
For the specialist
A technical detail or scholarly debate that may be skipped on a first reading.
About the instruments, their versions and the cases

In this book we describe instruments and explain how they are administered and interpreted, but we do not reproduce their items or copy their record forms, out of respect for publishers' rights and for the validity of the instruments themselves. Illustrations of forms are schematic and show no more than the layout of the page. Each profile reports the status of the instrument's Arabic version as we found it while preparing the book, and readers are advised to verify the licensing and norms of any version before relying on it. The blank forms in Chapter 4 are our own. All cases are hypothetical, written for teaching purposes, and any resemblance to real persons is unintended.

About regulatory information

The Saudi regulatory texts cited in this book (the Regulations for Special Education Institutes and Programs, 1422 AH; the Special Education Organizational Guide, 1436–1437 AH; the Law on the Rights of Persons with Disabilities, 1445 AH; and others) are presented as we found them published while preparing the book. Because regulations are subject to revision, the authoritative reference is always the version currently in force.

Download the book and its chapters (PDF)

ContentsTable of contents

Part One: Foundations Concepts and a shared language

  1. 1Concepts of diagnosis and identificationScreening, identification, diagnosis and eligibility; models of disability; classification systems; the regulatory framework in Saudi Arabia; and principles of fair assessment
  2. 2Measurement fundamentalsStandard scores; the standard error, confidence intervals and score differences; the five sources of validity evidence; fairness in measurement; accommodations; and ethics

Part Two: Methods How we gather evidence

  1. 3Formal standardized methodsIntelligence and achievement tests and CHC theory, adaptive behavior, rating scales, Arabic versions, and digital assessment and teleassessment
  2. 4Informal methodsStructured observation and interobserver agreement, interviews, curriculum-based measurement and decision rules, error analysis, portfolios, and printable forms
  3. 5Alternative methodsDynamic assessment, functional behavioral assessment and its limits, authentic assessment, assessment in early childhood, and assessment of learners with severe disabilities
  4. 6Identification modelsSimple and regression-based discrepancy, response to intervention, patterns of strengths and weaknesses, the hybrid model with a worked case, and rules for combining criteria

Part Three: Categories From indicators to judgment

  1. 7Intellectual disabilityIntellectual ability, adaptive behavior and onset during the developmental period; genetic testing; the age of norms near the cut-off score; and four cases
  2. 8Learning disabilitiesReading in Arabic and its features, writing and mathematics, distinguishing developmental coordination disorder, co-occurrence, and four cases
  3. 9Autism spectrum disorderCriteria in the two manuals, early screening, rating and diagnostic tools, reading the diagnostic report, prevalence, and co-occurrence
  4. 10Attention-deficit/hyperactivity disorder and behavioral and emotional disordersMulti-informant rating scales; oppositional, conduct, anxiety and depressive disorders; universal behavior screening; differential diagnosis; and adolescent cases
  5. 11Sensory and multiple disabilities and communication disordersAudiological and visual assessment; developmental language disorder; deafblindness; and multiple, physical and health disabilities and brain injury
  6. 12GiftednessThe four models, opportunity to display, local norms, the ceiling effect and above-level testing, the Mawhiba scale, and measures of ability and creativity
  7. 13Twice-exceptional learnersThe two reference definitions, masking, normative and intra-individual perspectives, and a dedicated assessment protocol and decision pathway

Part Four: Applied issues From diagnosis to decision

  1. 14Fairness in diagnosisDisproportionality and the risk ratio, where bias enters, language and culture, equity in gifted identification, and assessor biases
  2. 15From diagnosis to decisionReport writing with a complete sample, meeting with the family, the individualized education program, gifted decisions, the Saudi framework, and reevaluation and exit

Appendices Quick references

  1. AGuide to instrumentsEvery tool mentioned in the book: its purpose, age range, qualification level, the status of its Arabic version and the chapter that covers it
  2. BGlossaryThe book's terms in alphabetical order with their English equivalents, plus an English–Arabic index
  3. CList of abbreviationsLatin-script abbreviations with their full forms and Arabic equivalents
  4. DLists of figures and tablesLinks to every figure and table in the book
  5. EConsolidated referencesAll chapter references in a single list, Arabic sources first, followed by those in other languages

Download the book

For reading offline: the full book as a PDF, or each chapter on its own.

The full bookPDF · print editionStart readingConcepts of diagnosis and identification
Download chapters individually
  1. Chapter 1Concepts of diagnosis and identificationPDF
  2. Chapter 2Measurement fundamentalsPDF
  3. Chapter 3Formal standardized methodsPDF
  4. Chapter 4Informal methodsPDF
  5. Chapter 5Alternative methodsPDF
  6. Chapter 6Identification modelsPDF
  7. Chapter 7Intellectual disabilityPDF
  8. Chapter 8Learning disabilitiesPDF
  9. Chapter 9Autism spectrum disorderPDF
  10. Chapter 10Attention-deficit/hyperactivity disorder and behavioral and emotional disordersPDF
  11. Chapter 11Sensory and multiple disabilities and communication disordersPDF
  12. Chapter 12GiftednessPDF
  13. Chapter 13Twice-exceptional learnersPDF
  14. Chapter 14Fairness in diagnosisPDF
  15. Chapter 15From diagnosis to decisionPDF
  16. Appendix AGuide to instrumentsPDF
  17. Appendix BGlossaryPDF
  18. Appendix CList of abbreviationsPDF
  19. Appendix DLists of figures and tablesPDF
  20. Appendix EConsolidated referencesPDF

First edition, 1448 AH / 2026 · Legal deposit no. 1448/7008 · ISBN 978-603-06-7714-6. Published under a Creative Commons licence (CC BY-NC-ND 4.0): it may be copied, distributed and shared for non-commercial educational and research purposes, with attribution to the author and without changes to the text.