Twenty-five years after the introduction of Carroll's (1993) Three Stratum (3S) theory of intelligence and McGrew's (1997) subsequent synthesis of 3S with the extended Gf-Gc / Horn-Cattell theory, the Cattell-Horn-Carroll (CHC) theory represents the prevailing framework by which the structure of human cognitive and intellectual abilities is…

The current paper describes the process used for developing the Guidelines for Diagnosis and Assessment of Children, Adolescents, and Adults with Learning Disabilities-Consensus Statement and Supporting Documents, and the rationale for some of the decisions. The guidelines were developed by a cross-sectoral working group of psychologists who…

This article explores the tensions between medical and pedagogical professionals involved with the classification and selection of pupils for the special day-schools for "feebleminded" children that were established from 1900 in the Netherlands to promote compulsory mass schooling's efficiency. These are set against the increasing…

Charles Spearman and L. L. Thurstone were pioneers in the field of intelligence. They not only developed methods to assess and understand intelligence, but also developed theories about its structure and function. Methodologically, their approaches were not that distinct, but their theories of intelligence were philosophically very different --…

Proposed guidelines have been published recently (Al-Hilawani, 2016) to help identify and determine for the first time the existence of learning disabilities among students in the Middle East Arab (M.E.A.) countries. These guidelines have been drawn from recent and up-to-date information available on learning disabilities. The purpose of this…

The incidence of writing disorder is as common as reading disorder, but it is frequently under-identified and rarely targeted for intervention. Increasing clinical understanding on various subtypes of writing disorder through assessment guided by data-driven decision making may alleviate this disparity for students with writing disorders. The…

This article briefly reviews the history of intellectual assessment of children and youth in the United States of America, as well as current practices and future directions. Although administration of intelligence tests in the schools has been a longstanding practice in the United States, their use has also elicited sharp controversy over time.…

Given their pivotal position, school psychologists have understandable concerns about the possibility of becoming the target of the relatively frequent legal proceedings under the Individuals with Disabilities Education Act (IDEA). Indeed, the threat of litigation can contribute to a flight from the profession (Lange, 2011). Yet, an informal…

It is almost self-evident that test results will be unreliable and misleading if those undergoing assessments do not make a full effort on testing. Nevertheless, objective tests of effort have not typically been used with young adults to determine whether test results are valid or not. Because of the potential economic and/or recreational benefits…

The assessment of cognitive ability in students with the most severe disabilities presents a challenge to the clinicians who are charged with this task. This article is the second of a two-part series that summarizes what is currently known about effective assessment of the cognitive ability of students with significant impairments in order to…

When Congress passed the Individuals with Disabilities Education Improvement Act in 2004 (IDEIA 2004), local educational agencies (LEA) were permitted to use a Response-to-Intervention (RtI) approach for identifying children with possible learning disabilities for special education. Furthermore, IDEIA 2004 no longer required LEAs to establish an…

There is great controversy in the field of learning disabilities (LD) regarding the establishment of criteria for LD identification. The traditional approach to LD identification is to use the IQ-discrepancy. Lyon and colleagues (2001) point out the numerous problems with such an approach, including faulty assumptions about the adequacy of an IQ…

Exceptionally bright and capable students with learning disabilities, often referred to as being twice exceptional, may fail to meet learning disabilities criteria if a strict psychometric approach is taken. To make an accurate diagnosis, an evaluator must consider their special circumstances, unique abilities, educational histories, and…

This report discusses implementation and structural issues, as well as the needed support required to successfully institute Response to Intervention (RTI) at the secondary school level. It defines the RTI models, explores benefits and challenges faced at the high school level, shares a snapshot of implementation at the high school level, and…

Six issues relating to assessment of gifted/learning disabled (GLD) students are discussed: (1) incidence; (2) cut-off IQ scores; (3) barriers to identification; (4) use of the Wechsler Intelligence Scale for Children--Revised; (5) differentiation between GLD and underachieving gifted; (6) qualitative differences between GLD, gifted, and learning…